AZ Contractor
In the Trades
We just started a restaurant expansion.
Plumber went in there and is installing an AO Smith Cyclone in the expanded area and replacing a Rinnai tankless.
When he shut off the cold water supply at the Rinnai and went to a sink to relieve the pressure the water never stopped coming out. The pressure dropped to a slow trickle but never stopped coming out.
He then shut off the main water supply to the suite and the water stopped immediately.
He mentioned there may be a cross connection but didn't have the time to troubleshoot it at the moment and would be doing that in a day or two.
Are there areas where a plumber can make a simple mistake and connect a cold supply to a hot supply?
Only fixtures that I can think of that have mixing valves are in the restrooms. I can isolate these fixtures by shutting off the angle stops but if that's not the problem, any advice on how to check for a cross connection?
Plumber went in there and is installing an AO Smith Cyclone in the expanded area and replacing a Rinnai tankless.
When he shut off the cold water supply at the Rinnai and went to a sink to relieve the pressure the water never stopped coming out. The pressure dropped to a slow trickle but never stopped coming out.
He then shut off the main water supply to the suite and the water stopped immediately.
He mentioned there may be a cross connection but didn't have the time to troubleshoot it at the moment and would be doing that in a day or two.
Are there areas where a plumber can make a simple mistake and connect a cold supply to a hot supply?
Only fixtures that I can think of that have mixing valves are in the restrooms. I can isolate these fixtures by shutting off the angle stops but if that's not the problem, any advice on how to check for a cross connection?