Hot & Cold water pressure

CathyandPaula

Why is there a difference in the water pressure between the cold water and the hot water? When we are using our water pump the cold water keeps the pump running correctly but when we turn on the hot water the pump sputters. I talked with the shurflow people and they told me how to adjust the pump but even if I adjust the pump there is still going to be a difference between the hot and cold pressure. Does the hot water line have some type of suppressor on it that can be removed?

Thanks

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Posted: 11:20 AM – Oct 12, 2016

retiredfields

There are bypass valves, under the sink, at the rear of the water heater. One of these may be partially closed. Even when open, the water flows through two of these valves, which reduces the flow and pressure. You may also have a one way check valve, at the tank inlet, that also reduces pressure and flow.

My hot water flow and pressure is lower than the cold also.

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Posted: 12:20 PM – Oct 12, 2016

JoeLifestyle

I agree. We don’t winterize, so when the hot water valve blew I took the opportunity to remove the winterizing bypass valves. I replaced that maze of pex with dishwasher hoses. Now pressure is equal hot and cold.

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Posted: 7:56 PM – Oct 12, 2016

papacliff

if the pump is actually sputtering, there may be an air pocket somewhere in a hot water line. If it’s just a pressure difference, there may be an obstruction. Either the valves or a clogged screen.

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