cold burst of water
Has anyone found a cure for that cold burst of water that occurs when you have the shower head turned off while soaping or shampooing, and a minute later turn back on what was a perfect temperature to...
Forum Discussion
CarnationSailor is on the right track…
I believe it depends on the type of hot water bypass used…
If you have the single or two valve bypass and a check valve as the third valve you get a lower flow rate and possibly lower pressure from the hot water line…
This allows the cold water to backflow a little into the hot water line without causing the check valve to close…
This should be less of a problem with the three valve bypass where the limiting differences is the natural resistance of the piping length itself and placement of the shower and the HWT …
I have read some complain about warm water from the cold tap for a few seconds… this can happen (usually only noticeable at the closest faucet to the HWT) if no water is run for long periods of time… no flow or pressure differences will allow a little hot water backflow into the cold water pipe…
.
I believe it depends on the type of hot water bypass used…
If you have the single or two valve bypass and a check valve as the third valve you get a lower flow rate and possibly lower pressure from the hot water line…
This allows the cold water to backflow a little into the hot water line without causing the check valve to close…
This should be less of a problem with the three valve bypass where the limiting differences is the natural resistance of the piping length itself and placement of the shower and the HWT …
I have read some complain about warm water from the cold tap for a few seconds… this can happen (usually only noticeable at the closest faucet to the HWT) if no water is run for long periods of time… no flow or pressure differences will allow a little hot water backflow into the cold water pipe…
.
