05:56PM | 03/05/07
Member Since: 03/04/07
1 lifetime posts
When I turn on my cold water, it runs cold for about 5second then runs hot for about 35sec and then it back to cold for the rest of that operation. I am getting this in all my faucets and also hot water in the toilet bowl. Is this a bad seperator valve or water heater? Please help! Thanks!


11:38AM | 03/06/07
Member Since: 01/24/06
1449 lifetime posts
Some of the possible causes

1- No heat sink of 27" to prevent stratification of the hot water molecules going to the cold water as heat goes to cold

2- Mixing of the supply hot and cold by a defective shower body or solenoid vale

3- A tempering valve is slow acting thus it is NOT considered an anti scald device and the element may have some mineral deposits slowing down the response time (sensing)

4-Washing machine connection see solenoid not holding properly.

5- By pass through anther fixture or appliance.

6- Cold water lines close to a heating line

There are lots of other conditions that can also cause this


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