They can be turned off with a screwdriver in order to isolate the shower valve from the rest of the water in the home. However, if you cannot locate the water stops on the shower valve assembly, then you will need to turn off the water to the entire home with the main shut-off valve. After turning off the water to the home, make sure to turn on a nearby faucet to release the pressure and drain the water line. Compare the size of the existing hole in the shower wall with the size of the shower valve.
In some situations, the shower valve cartridge cannot be removed because the hole in the shower wall is too small to remove the retainer clip or pull out the shower valve cartridge. If this is the case, then you may need to use a hack saw or an angle grinder to cut the tiles and increase the size of the hole. Just make sure that the hole is still small enough to fit entirely behind the trim plate. If the shower valve cartridge, water stops, and the retainer clip at the top of the cartridge can be freely accessed, then there is no need to expand the hole.
The retainer clip is a small piece of metal that is inserted through the top of the shower valve to secure the shower valve cartridge and prevent it from becoming loose or sliding out of position. This clip is easy to remove with a set of needle-nose pliers. Simply grip it with the pliers and pull it up and out of the shower valve. If the retainer clip is in good condition, it can be reused, though most new shower valve cartridges will come with a new retainer clip, so reusing the clip isn't normally necessary.
Use the standard pliers to grip the shower valve stem and slowly pull the cartridge out of the shower valve assembly. Ideally, the cartridge will slide out without a problem, but if the cartridge is stuck consider, using a lubricating solution, like WD40, or try wiggling it back and forth as well as up and down to loosen the cartridge. After removing the cartridge, inspect the shower valve assembly to ensure that it's in good condition before proceeding. If there are signs of severe rusting or corrosion, then you may need to hire a professional plumber to replace the entire shower valve assembly and the surrounding pipes or take on this job yourself if you have enough knowledge, experience, and time.
With the old cartridge out and the shower valve assembly in good condition, the new shower valve cartridge should slide in without a problem as long as it's the correct replacement part.
Use the new or the old retainer clip to secure the cartridge in place. Test for leaks in the shower valve by turning on the water to the house or simply using the water stops, if applicable.
Wipe down the valve assembly with a paper towel to ensure that it's completely dry, then wait a few minutes before wiping it again. The absorbent qualities of paper towels make them a great leak detector because they clearly display even a drop of water. Slide the trim plate over the stem of the shower valve and secure it with screws, then secure the handle or handles with the set screws. Clean up the drop cloth and any other debris, then test the shower handle to see if it properly controls the flow and temperature of the water.
With everything working correctly, you just need to apply new caulking around the trim plate to prevent water from seeping behind the shower wall. Look for tiny defects or nicks in the rubber parts. Also look for cracks in the plastic housing. If everything looks fine, rub some liquid soap on the cartridge and slide it back in. The soap acts as a lubricant and so the part should go in very easily. Join Our Team, We're Hiring. Replaced Shower Cartridge but It still Leaks.
Remember to thread your new shower head on the shower pipe , turn the shower head clockwise to install it, and secure it by tightening the nuts. Make sure that you cover all holes. You can do this using a silicone sealant. You can even opt to decorate or paint over the holes to give it a more appealing look. Many bathrooms have a tub spout.
Once loose, take off the old spout. Now install the new Delta spout and screw it in place using an Allen wrench. Once you are satisfied, turn on the main water supply of your home and unclog your drain to start enjoying your newly installed Delta shower faucet.
Installing a Delta shower faucet is not as challenging as it might seem. The key is usually making sure that you have the right tools and materials before starting the job. If you are still not confident about doing it yourself, it is always best to seek professional help.
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