House water turned off for 3 hours, house plumbing out of whack - Air in system?

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Jluksic

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House built in 1995, "normal" home plumbing for Colorado suburbs, master bathroom remodel this month, contractor turned off water for 3 hours to rerun master bathroom shower plumbing, all very very basic stuff.

Here's the rub: hot water is very inconsistent now. HW temp is fine but volume very low, seems to run out after few minutes. HWH is only 2 years old.

Since master remodel is not finished, I haven't turned on all house faucets to purge air.

So my question is: Is it possible that the air left in the house plumbing system (non-recalculating) can cause peculiar behavior among the HWH and general H2O delivery?

If it means anything, this isn't the first time I've seen this behavior after turning off house plumbing.
 

GrumpyPlumber

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For now, try these:
- remove aerators on all faucets and clean.
If that doesn't work:
- close water main, open hot & cold side of faucets, open drain at bottom of water heater & run until the water is clear..you may have sediment trapped in the heaters inlet or outlet.

Question, is the flow problem isolated to one fixture? or the whole house?
 

Jluksic

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Solved! New Delta shower mixing valves (the Deltas with external vavles) had NOT been installed so system was "recirculating".
 

hj

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water

A classic example of not enough information about the job to be able to give a good diagnosis. From your original descsription, it implied that that bathroom was complete, and nothing was mentioned about a Delta body being installed, but was not trimmed out. Our crystal balls were out for their 5,000 guess tuneups at the time.
 
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