What is the difference between a Moen PosiTemp valve and a Moentrol Valve? First we look at the similarities of the two valves. Both offer a pressure-balanced system that maintains water temperature within two degrees. Built-in temperature limit stops which all you to control how far the handle rotates, therefore, controlling the range of water temperature. Available in a variety of connections from common 1/2″ CC/Sweat, 1/2″ IPS threaded, 1/2 PEX or CPVC. Meets pressure-balancing safety codes. Now we look at the differences between the two valves. The Moentrol has Temporature Memory. When shutting-off the shower faucet, the handle stays in the exact temperature position you set during use. The next time you turn on the faucet, within a few seconds, the water temperature reaches your last temperature setting. The PosiTemp doesn’t have Temperature Memory. The handle goes from one side to the other always going from cold to hot from the off position. The Moentrol Valve has volume control which controls the water flow rate so you get the amount of water you want at the temperature you desire. The Moentrol has a flow rate of 7.5gpm while the PosiTemp has a flow rate of 6.3gpm.
The Moentrol valve operates by pulling the knob out to control flow. Once the knob is pulled out to turn the water on, it is then rotated to select a temperature. Left for hot, right for cold, or a mixture of both in the middle. Once the faucet is done being used, you can turn it off by pushing the knob straight in. The PosiTemp valve does not pull out. To turn on the water flow the handle is rotated counterclockwise. You turn the handle counterclockwise until water dispences. The water starts at the coldest setting. To change to a higher temperature you keep turning the knob counterclockwise. All the way counterclockwise would be the hottest temperature setting. To turn the faucet off turn it all the way back clockwise to the off position.
The Moentrol valve is more expensive then the PosiTemp for the added feature of Temerature Control where you can set the temperature so it is always where you like it. Check out the Moentrol valve and PosiTemp valve by Moen Faucets. Brought to you by The Faucet Expert (TM). Videos.
“Valve Stops” or “With Stops” means that the shower faucet valve includes shut-offs for the water line so you don’t have to shut off water to the entire house to work or repair parts on the shower/tub system. The video tuorial above will explain what stops are and why they are used. Stops are a screwdriver shut off mechanism that allows the water supply to be cut off directly at the valve without affecting the water supply to the whole house or building. Convenient for future maintenance or repairs. Say you want to replace a valve catridge and dont want to stop others in the house from using the kitchen faucet or another bathroom toilet. With stops you can turn off the water at the shower valve so others can keep using the water supply around the house. The small added cost pays for itself in terms of time and hassle saved. To use the stop insert a screwdriver into the slot on the hot water supply side of the valve. Now turn the stop 1 quarter in any direction to turn the water supply on or off. Now repeat this process on the other side to turn on or off the cold water supply. The water is now cut off from the valve and you can perform maintainance or exchange the valve cartridge when it wears out. Check out the following Shower Faucet valves and Tub Faucet Valves with stops. Brought to you by The Faucet Expert (TM). Videos
In this Valve video tutorial we will take a look behind your shower faucet. The purpose of the valve is to control the flow of water and/or temperature. When you turn the valve handle the valve mixes the hot and cold water supplied through the lines that are behind the walls of your tub or shower. Valves are specific to each manufacturer. One manufacturer’s trim kit or faucet will not work with another manufacturer’s valve. If you choose to replace your existing tub/shower faucet with a different manufacturers line then you must also replace the valve in the wall. For instance if you have a Delta Faucet valve you can not put on a Moen Faucet trim kit handle. Manufacturers do this on purpose so the parts are not interchangeable and that you will always stay with their brands. You have to ask yourself 2 questions when looking to purchase a shower system. If new construction, you can pick whatever brand and valve you would like. If remodeling you will need to ask yourself what brand you currently have installed? Then you have to ask yourself if you want to do any plumbing work behind the wall? If the answer to the second question is no then you will want to stay with the brand you have and just replace the inner cartridge part and change what is called the “Trim Kit“. The trim kit is what you see on the out side with the finish. The handle and back plate. Some Trim kits include the shower head and/or tub spout. See Shower Tub Accessories
The valve is not always included with a new faucet. You can tell if you need one by looking in the product details on the product detail page. Why? In new construction the valve may be installed months before the actual faucet is installed during the final finishing or fixture stage. Many times the builder puts the valve in before a homeowner has picked out the trim kit and finish. In remodeling jobs, if you are just changing the trim kit you will not want to change out the valve and pay for a new one since you already have the valve in the wall. The valve is the most costly part. Check out Shower Only Faucet Valves and Tub/Shower Faucet Valves and Brought to you by The Faucet Expert (TM). Videos