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The valve seat or washer on the main valve are not seating/sealing properly.

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Q: Why won't the hot water stop running even with the main shut off valve shut off?
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What is main feed water stop valve?

It's a valve that regulates the main water pipe.


Why do you have no water pressure after turning on the main valve?

Water not on at street 'city' valve, or other valves--after inside main valve--off.


What to do if the water pressure in your house is too high?

There is usually a main water valve that comes into the house, locate this valve and turn it down. Installing a pressure reducing valve after water main valve will allow for adjustment of water pressure to proper setting.


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Why is there a constant trickle from house to septic tank even after main water valve is turned off?

Either toilets seeping through flapper or ground water would be my guess


Where is the water shut off for a shower in the bath tub?

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What will happen if the main water pipes break?

Water will run until a valve or pump is shut off upstream from water main break.


Why is the lawn sprinkler head leaks water when the main water valve is shut off?

After a main water valve is closed the system's PVC pipes are still full of water and will drain to the lowest sprinkler head until the system is empty.


What is the pupose of a check valve on recirculating hot water system?

The check valve is a directional valve. Hot water needs to be piped from the top of the tank to the fixture, because that is where the hottest water in the tank is. If a return line is tied into the bottom of the tank, a directional valve (check valve) should be installed between the heater and the pump. That's what they taught me don't know if it really matter upstream or down stream. If you don't have a check valve the water could flow through the return line to the fixture instead of through the supply pipe and the water at the fixture might not be hot enough.


Where is the prv valve?

The main Pressure Reducing Valve (PRV) can typically be anywhere between the City Water shutoff valve by your water meter (if external) and the first "tee" in the water supply system. Though quite often it is near the main building shutoff valve inside the home.Some fixtures or appliances have their own PRV, like a hydronic heating system.


Where is the Running Water Historical Society in Running Wate South Dakota located?

The address of the Running Water Historical Society is: 5609 Main St, Running Wate, SD 57062