Ethan Brooks
If your shower drain is installed too high, it can lead to poor drainage, standing water, and potential water damage. This issue often arises from improper installation or settling of the shower pan over time. To fix a shower drain that’s too high, you’ll need to assess the underlying cause—whether it’s a misaligned drain pipe, an incorrectly sloped shower base, or a problem with the plumbing. Solutions may include adjusting the drain assembly, re-sloping the shower pan, or even replacing the entire shower base. Addressing the problem promptly is crucial to prevent mold, mildew, and structural issues, ensuring your shower functions efficiently and safely.
| Characteristics | Values |
|---|---|
| Problem Description | Shower drain installed too high, causing water pooling or slow drainage. |
| Common Causes | Incorrect installation, improper slope, or settling of the shower pan. |
| Tools Required | Pry bar, screwdriver, utility knife, reciprocating saw, new drain assembly, plumber's putty, silicone caulk, and a level. |
| Materials Needed | Replacement drain kit, mortar or thin-set, waterproof membrane, and tiles. |
| Steps to Fix | 1. Remove the existing drain. 2. Adjust the slope of the shower pan. 3. Install a new drain at the correct height. 4. Reapply waterproofing and tiles. |
| Alternative Solutions | Use a drain extender or adjust the shower pan with mortar. |
| Professional Help | Recommended if the shower pan needs significant modification or re-sloping. |
| Cost Estimate | DIY: $50–$200; Professional: $300–$800 depending on complexity. |
| Time Required | DIY: 4–8 hours; Professional: 1–2 days. |
| Precautions | Ensure proper waterproofing to prevent leaks and water damage. |
| Long-Term Maintenance | Regularly clean the drain and inspect for signs of wear or damage. |
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What You'll Learn
Adjusting Drain Height with Extender
If your shower drain is installed too high, it can lead to poor drainage and standing water, which is both unsightly and a potential health hazard. One effective solution to this problem is adjusting the drain height using an extender. This method is particularly useful when you want to avoid the complexity and cost of replacing the entire drain assembly. A drain extender is a simple, cost-effective component that can be added to the existing drain to lower its height relative to the shower floor. Here’s a step-by-step guide on how to adjust your shower drain height using an extender.
First, gather the necessary tools and materials for the job. You’ll need a drain extender kit, which typically includes the extender piece, screws, and possibly a gasket or sealant. Additionally, have a screwdriver, pliers, a utility knife, and a silicone sealant on hand. Before starting, ensure the shower area is clean and dry to prevent any debris from interfering with the installation. Turn off the water supply to the shower if necessary, though this step is usually not required for this task.
Begin by removing the existing drain cover. This is typically done by unscrewing it counterclockwise or prying it off gently with a flathead screwdriver. Once the cover is removed, inspect the drain body to ensure it’s in good condition and free of any obstructions. If the drain body is damaged or corroded, it may need to be replaced before proceeding. Next, measure the gap between the bottom of the drain and the shower floor to determine the appropriate height of the extender needed. Most extender kits come with adjustable pieces to accommodate different heights.
Install the drain extender by placing it into the drain body, ensuring it fits snugly and securely. Some extenders may require screwing or locking mechanisms to hold them in place. Follow the manufacturer’s instructions for proper installation. Once the extender is in place, reattach the drain cover, making sure it aligns correctly and sits flush with the extender. If the extender kit includes a gasket, place it between the extender and the drain cover to create a watertight seal. Tighten any screws or fasteners securely, but avoid over-tightening to prevent damage.
Finally, apply a bead of silicone sealant around the edges of the drain cover to ensure a waterproof seal. Smooth the sealant with a damp finger or tool, and allow it to cure according to the manufacturer’s instructions. Test the drain by running water through it to ensure proper drainage and check for any leaks. Adjusting the drain height with an extender is a straightforward and effective way to resolve issues caused by a shower drain that’s too high, restoring functionality and preventing water pooling in your shower.
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Using a Drain Grate Shim
If your shower drain is installed too high, causing water to pool around it, using a drain grate shim is a practical and relatively simple solution. A drain grate shim is a thin, flat piece of material, often made of plastic or rubber, that can be placed under the drain grate to raise it slightly, ensuring proper water flow into the drain. This method is particularly useful when the issue is minor and doesn't require extensive plumbing work. Here’s a step-by-step guide on how to use a drain grate shim effectively.
First, gather the necessary materials: a drain grate shim (available at most hardware stores), a screwdriver, and possibly a utility knife or sandpaper. Start by removing the existing drain grate. Most grates are held in place by screws, so use the screwdriver to carefully remove them. Once the screws are out, lift the grate gently to avoid damaging the drain assembly. Inspect the area around the drain to ensure there’s no debris or buildup that could interfere with the shim’s placement.
Next, prepare the shim for installation. Measure the diameter of the drain opening and trim the shim to fit if necessary. The shim should be slightly smaller than the grate to ensure it doesn’t obstruct the water flow. If the shim is too thick, use sandpaper to thin it down to the desired height. The goal is to raise the grate just enough to allow water to drain properly without making it too high or unstable.
Place the shim directly over the drain opening, ensuring it sits flat and centered. Reinstall the drain grate on top of the shim, securing it with the screws you removed earlier. Tighten the screws just enough to hold the grate in place without over-tightening, which could damage the shim or the grate. Test the drain by running water in the shower to ensure it flows smoothly into the drain without pooling.
Finally, monitor the drain over the next few days to ensure the shim is effective and doesn’t shift or cause any new issues. If the problem persists, you may need to adjust the shim’s thickness or consider other solutions, such as adjusting the shower pan or consulting a professional plumber. Using a drain grate shim is a cost-effective and non-invasive way to address a shower drain that’s too high, making it a great first step before pursuing more complex fixes.
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Modifying Shower Pan Slope
Modifying the slope of a shower pan is a critical step in fixing a shower drain that sits too high. The primary goal is to ensure water flows efficiently toward the drain, preventing standing water and potential leaks. To begin, assess the existing slope of the shower pan. This can be done by using a level and measuring the gradient from the center of the pan to the drain. Ideally, the slope should be about 1/4 inch per foot to facilitate proper drainage. If the current slope is insufficient, you’ll need to adjust the pan’s structure.
One common method to modify the shower pan slope is by adding a mortar bed underneath the pan. Start by removing any existing waterproofing membrane or tiles around the drain area. Clean the surface thoroughly to ensure proper adhesion. Mix a batch of thin-set mortar or a specialized shower pan mortar, following the manufacturer’s instructions. Apply the mortar in layers, building up the slope gradually from the edges toward the drain. Use a trowel to create a smooth, even surface, and regularly check the slope with a level to ensure it meets the 1/4 inch per foot requirement. Allow the mortar to cure completely before proceeding.
Another approach is to use a pre-sloped shower pan liner or foam base, which can simplify the process. These products are designed with a built-in slope, eliminating the need for manual adjustments. Install the liner or foam base according to the manufacturer’s guidelines, ensuring it fits securely around the drain. This method is particularly useful for DIYers or when working with a pre-fabricated shower unit. However, it’s essential to verify that the product’s slope aligns with your specific drain height and shower dimensions.
If you’re working with a concrete shower pan, you may need to chisel or grind down the existing surface to create the proper slope. This method is more labor-intensive and requires careful precision to avoid damaging the drain or surrounding structure. After reshaping the pan, apply a waterproofing membrane to protect the concrete and prevent leaks. Follow this with a layer of mortar or tile adhesive to prepare the surface for tiling. Throughout the process, continually check the slope to ensure it directs water effectively toward the drain.
Finally, once the slope is correctly modified, reinstall the waterproofing membrane and tiles, ensuring all seams are sealed to prevent water intrusion. Test the drainage by running water in the shower and observing how it flows toward the drain. If standing water persists, revisit the slope and make necessary adjustments. Properly modifying the shower pan slope not only resolves the issue of a high drain but also enhances the longevity and functionality of your shower system.
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Installing a Deep Drain Body
When addressing a shower drain that is too high, one effective solution is to install a deep drain body. This modification allows for proper alignment of the drain with the shower pan or floor, ensuring efficient water flow and preventing standing water. Before beginning the installation, gather the necessary tools and materials, including a deep drain body kit, plumber’s putty or silicone sealant, a screwdriver, pliers, and a hacksaw. Ensure the new drain body is compatible with your existing plumbing setup and shower pan dimensions.
Start by removing the existing drain assembly. Turn off the water supply to the shower and use a screwdriver to pry off the drain cover. Unscrew the strainer or drain body from the shower pan, being careful not to damage the surrounding area. If the drain is glued or sealed, use a utility knife or oscillating tool to carefully cut through the sealant. Once removed, clean the area thoroughly to ensure a secure fit for the new drain body. Measure the opening in the shower pan to confirm the deep drain body will fit properly.
Next, prepare the deep drain body for installation. Apply a bead of plumber’s putty or silicone sealant around the underside of the drain body’s flange. This creates a watertight seal between the drain and the shower pan. Carefully insert the deep drain body into the opening, pressing it firmly into place to ensure the sealant adheres properly. If the drain body has adjustable components, such as a threaded collar or extension pieces, adjust them to match the height of the shower pan for a flush fit.
After positioning the drain body, secure it from below. Tighten the locknut or screw onto the drain body’s threaded portion using pliers or a wrench, ensuring it is snug but not overtightened to avoid cracking the shower pan. Reconnect the drain pipe to the new drain body, using a hacksaw to adjust the pipe length if necessary. Apply threading tape or sealant to the connections to prevent leaks. Test the assembly by running water through the drain to ensure proper flow and check for any signs of leakage.
Finally, reinstall the drain cover or strainer onto the new deep drain body. Ensure it fits securely and aligns with the surrounding shower floor. Wipe away any excess sealant or putty for a clean finish. Allow the sealant to cure according to the manufacturer’s instructions before using the shower. Installing a deep drain body is a practical solution to fix a shower drain that is too high, restoring functionality and preventing water pooling in the shower area.
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Leveling Shower Floor with Mortar
Leveling a shower floor with mortar is an effective solution when dealing with a shower drain that sits too high. This issue often arises due to improper initial installation or settling of the subfloor over time. By using mortar, you can create a gradual slope toward the drain, ensuring proper water drainage while maintaining a level and safe shower surface. The process requires careful planning, precise measurements, and attention to detail to achieve a professional finish.
Before beginning, gather all necessary materials, including mortar mix, a trowel, a level, a sponge, a bucket, and safety gear such as gloves and goggles. Start by thoroughly cleaning the shower floor to remove any debris, soap scum, or old caulk. Ensure the surface is dry and free of moisture, as this can affect the mortar’s adhesion. Next, measure the height difference between the shower floor and the drain. This measurement will guide the thickness of the mortar layer needed to create the proper slope. A general rule is to achieve a slope of 1/4 inch per foot toward the drain for optimal drainage.
Prepare the mortar mix according to the manufacturer’s instructions, ensuring it has a thick, creamy consistency. Begin applying the mortar at the farthest point from the drain, using the trowel to spread it evenly. Work in small sections, gradually building up the mortar to create the desired slope. Use the level frequently to check the slope and ensure it is consistent across the entire shower floor. Pay special attention to the area around the drain, as this is where the slope is most critical. Smooth the mortar surface with the trowel, removing any excess and creating a uniform finish.
Once the mortar is applied, allow it to cure according to the manufacturer’s recommendations. This typically takes 24 to 48 hours, depending on the product and environmental conditions. Avoid walking on or using the shower during this time to prevent damaging the mortar. After curing, inspect the surface for any imperfections or areas that may need additional mortar. If necessary, apply a second thin layer to refine the slope and ensure a smooth finish.
Finally, seal the mortar surface with a waterproof membrane or tile adhesive before installing new tiles or a shower pan. This step is crucial to prevent water penetration and ensure the longevity of the repair. With careful execution, leveling a shower floor with mortar not only resolves the issue of a drain that sits too high but also provides a durable and functional shower surface for years to come.
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Frequently asked questions
A shower drain that is too high can occur due to improper installation, settling of the floor, or incorrect slope in the shower pan. This issue prevents water from flowing efficiently, leading to slow drainage or standing water.
You can fix a high shower drain by installing a drain extender or using a shallow drain kit. Another option is to adjust the slope of the shower floor by adding a thin layer of mortar or self-leveling compound around the drain.
Minor adjustments, like using a drain extender or adding self-leveling compound, can often be done DIY. However, lowering the drain itself or modifying the shower pan typically requires professional plumbing and tiling expertise to avoid leaks or structural damage.
Common signs include water pooling around the drain, slow drainage, or water not draining at all. You may also notice mold or mildew buildup due to standing water, indicating the drain is not functioning properly.
