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Answered 2009-02-01 09:29:33

This will involve breaking open the shower wall, taking out the one handle unit and rearranging the pipework in order to replace it with a two handle valve unit. This not a DIY job, call a plumber to do this to save yourself the headache of having to call one later

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Thermostatic shower valves are one of the most expensive parts of a shower. The current retail price for a standard one averages between $200 and $250.


First make sure that the hot and cold supply lines (the plumbing) aren't backwards (hot should be on the left as you are facing the faucet) or that someone accidentally ran two hot lines. For the problem to be in the faucet itself you would have to have a single handle faucet. If this is the case the control valve is broken and should be replaced. Three handle Left= Hot Water Flow. Right= Cold Water Flow Center= Controls whether the water comes out the shower head or tub faucet. Two handle Left= Hot Water Flow Right= Cold Water Flow (Diverter Valve is elsewhere if it's a tub/shower) Single handle One handle controls both water pressure and temperature


Change the faucet, either one will mount on the sink.


Your water pressure is low. Consequently, when cold water is diverted to another application such as a toilet or a sink, the amount of cold water available at the shower mixing valve decreases as the low pressure is unable to keep up with the shower's demand. This causes a hotter mixture at the shower head. The solution is to either improve the cold water supply to the shower or to replace the shower control valve with a temperature compensating type. Pressure balancing is the cheapest and simply changes the shower temperature according to the pressure in the cold and hot water lines. When the toilet or sink is used, reduced pressure to the shower valve is detected and the valve reduces the hot water pressure, thereby maintaining the temperature. The more sophisticated approach is a thermostatic shower control valve. These are significantly more expensive, but will not reduce the pressure at the shower head (a drawback of the pressure balancing valve). The thermostatic valve would be required when one shower control valve is operating several shower heads. Moen, Kohler and Delta all make both types of control valves. They can be readily obtained from a local plumbing supply house.


No. A little confused by the description of a threaded 90 and having to cut the valve free. Every shower I have ever done the final connection to the valve goes on with a nut. You should be able to take one side loose and leave the valve in place. Disassemble to the leak and replace.


No just make sure the holes are close and its not a cheep one


In a single handle faucet the mechanical principle is a ball valve one. This is where the ball valve acts to cut off whichever type of water is not wanted so the correct water comes out.


On the back of the valve/diverter there are either four or three openings. One on either side for hot and cold water coming into the valve and one on top going up to the shower arm. If it is there the fourth opening is on the bottom and would go to the tub spout. Depending on the design you may have to solder adapters for the cpvc fittings into the openings of the valve.


The hot and cold shower knobs open and close the valves that release and stop the water flow. Water will continue to flow from the shower head if the washers or other internal parts of one or both of those valves have become damaged or excessively worn. Repair may be as (relatively) easy as replacing a washer, or it may mean replacing other internal parts. Usually it's not necessary to replace the entire valve, which is a good thing, because that's very hard in a finished house. You'll be able to tell which valve needs repaired according to whether it's the hot or cold water that's still flowing. (If this is a tub shower and the symptom is that warm water comes from the shower head even when the diverter valve is set to tub, then that diverter valve is likely the one with the problem.) Do-it-yourself plumbing repair books at hardware stores and home centers have good guides on doing water valve repairs. Some detail on older faucets: Older and inexpensive faucets use rubber washers, on the end of the valve stem, to stop the water flow. The valve stem is the spindle that projects out of the valve and onto which the handle is attached. On the other end of the valve stem, inside the valve, this rubber washer is attached by a screw through the center. Tightening the handle presses the washer against a valve seat. Water is attempting to flow through the hole in the center of the valve seat, and it's the washer that stops it. When the washer is worn, it's hard to make a tight seal. The washer may become so worn, though, as the user tightens the handle down more and more, that it simply breaks away. At this point, you have metal against metal, the valve stem grinding on the valve seat. This may grind away or chip the valve seat. Then even a new washer may not be able to properly stop water flow. When you're replacing rubber washers, examine the valve seat. If it's not unbroken and perfectly smooth, replace it too. Otherwise, not only might water still leak, but the new washer will be quickly ruined.


Be aware that for the first few minutes after turning off you will get the shower head leak a little. This is because the shower head has a large cavity inside that fills up with water in use. When you turn off, that water has to go somewhere, so it dribbles through the outlets of the shower head. If both shower heads are off no water should be going to your shower head. the only thing it could be is your shower valve itself. you probably have a pinhole in one of your o rings on the valve stem. try replacing the valve stems. I would start by replacing all the washers and o-rings on the hot and cold valves ( a lot cheaper than replacing the entire valve stem ). Try replacing the Valves, and then the pipe holders, (for want of a better word) to the wall. The shower diverter has a bad seal - very easy to replace.



It's likely there's a rupture in the diaphragm that pulls the air into the chamber and then pushes it out to the valve. There are two "reed" valves in the pump that only allows the air to go in one direction with each valve. So when you pull up on the handle to fil the pump, one valve allows air in, but not out when you push down on the handle. Another valve at the bottom of the pump allows the air out when the handle is pushed down, going to the tire. There is another vavle on the tire that is opened only with the pumps adaptor, to allow air into the tire.


First, remove the shower head and test the valve. If you have plenty of water at the shower with the head removed, then the problem is a clogged shower head. Clean it or replace it. What the hell...just replace it. You deserve it. Go buy one of those cool shower massage heads to replace it. If you discover you have poor flow at the head with the shower head removed, then you have a blockage in your valve. So you buy a 1/2 (female pipe thread) x Hose Thread adapter. Put that on the arm for your shower head. Turn off the water to the house. Borrow a neighbors hose and run it through a window and connect it to the shower head (hose thread adapter). Now take the hose off your washer box and drop the hose into the drain hole. Now turn on the water. The water from your neighbor will allow you to backflush that valve. The debris will backflush and wash out through your laundry hose on down the drain. If that doesn't work, then yes, you probably need to replace the entire valve. (I'm assuming your already taken the cartridge apart and cleaned it) == = Is your tub spout still running alot of water through it when you use the shower? If so replace spout, if three valve, replace center diverter. If that is all ok, Then yes take off shower head and see if you have the pressure, if so install new shower head and or clean. If not head, then screw on .5 x hose adpt. to the shower arm, you will have to have one washer hose to connect to your outside faucet then to your garden hose which will connect to the shower arm. Leave faucet hot and cold water off, turn on outside faucet all the way, this will let the water go through the valve and out the spout. If this does not work replace faucet.


You may have a large chunk blocking the discharge valve, try opening the valve with the pump off and moving a broom handle upinside the valve, you should have a two and one half inch valve for the dischargeso a handle or something smaller, just may be blocking the hole at the valve to let the water out.most people have a problem getting the filter to prime and keep running. If you have a popular punp and filter just remove the discharge valve and see if anything is blocking the hole.


That is the correct spelling of shower (bath) or shower (one who shows).


Temperature control using a single lever handle is easy, the handle only turns a maximum of 90 degrees. one side cold, one side hot and the middle a mixture of both turning it slightly either way will increase whichever side is more open


no you can not repair it because its all one pressed unit and cpvc ball valves are one of the worst ball valves to shut off if its been on for a long time. I recommend you replace the ball valve with a brass ball valve using a sharkbite or cpvc fitting adapters to a thread one.


One of the easiest and least expensive fixes for this problem is to adjust the flow of water into the toilet. If the toilet fills more slowly, it will not alter the water pressure enough to change the temperature of the shower. Another possible solution, which would require the purchase of a special valve and possibly installation by a plumber, is to install a thermostat-controlled water valve in the shower to keep the water flow at a constant temperature.


Can you tell a blind person how to steer a car and take you someplace without crashing? Probably, so you can probably do the shower valve. Some possible problems to consider. Getting to the control valve. Almost certainly from the backside of the shower. Is there access to that or do you need to cut a hole in the wall. Does the valve have threaded connections or are they sweated on copper? It is unlikely that you can get the same exact model of valve so the fittings that are on the pipes for the old one will probably not fit on the new one. This means you will have to unsolder the old connections and install the new ones. If you can use a pipe wrench and a crescent wrench, understand how to hold the pipe so you don't break it, you should be able to change it out. Sweating copper is about the easiest thing to do in plumbing once you know how.


Not always, there is a standard shower valve that most handles will work for. it depends on what your set up is. As far as the shower head is concerned you should be able to put anything on.As I'm standing at Home Depot looking at all the different shower valves on the display I wonder which one is the "standard" that all handles and trim fit on. The fact is unless you are replacing with it the same valve or in some cases the same brand all the trim plates and handles have to be changed.*It TOTALLY depends on the brand and make of your faucet. You would have to determine what brand the faucet is(ex. Moen, Delta), The next move is to determine which model it is(ex. Moen Heritage, Delta Leland). Then you get their own catalogue # and determine what cover plate, handle and screws will fit onto your existing faucet, order them, and replace them. ALL FAUCETS AND THEIR PARTS ARE MADE DIFFERENTLY!!!*Cheers, QuiteSomethingAns 4 - YES, you DO need to replace this valve unless your new fixture is identical


what is a one-way valve


Measures the diameter of the valve and try and match up the size in your local plumbing store. If it is truly a vintage valve and not a new one made to give the effect you can also try building material recovery (recycling) companies. The difficulty is identifying the thread used.


It releases a set amount of each water, hot and cold, depending on what the user selects with the handles. One piece units are not as accurate as two handle system; advanced and modern thermostatic mixers start with hot water than add cold water until the predetermined temperature is reached.


Buy to shower valves and install them so they are on opposite side walls or if you have a existing shower with one valve then the easiest way is to take out your old shower head and replace it by buying a chrome wye fitting that with two chrome nipples you can install to shower heads another way is by buying 3 chrome nipples and one chrome T and two chrome male by female IPS 90 and thread them into the the T and then you have room for two shower heads and they can be put side by side. The best way is to have two shower valves & shower heads, depending on your water supply and how you run your water pipes to the valves, most likely you will increase your water flow if not almost double and make sure you have at least a 2" drain & trap.


Hammering pipes is the result of inertia when moving water causes the pipes to move when a valve is suddenly turned off. Use an anti-hammer device. You can purchase one at most home centers.



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