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Hot water issues in both showers (single handle), bathroom…

Customer Question
Hello - Hot water...

Hello - Hot water issues in both showers (single handle), bathroom sinks, and kitchen (single handle). We replaced both showers with full cartridge kit. Issue still persist - Super recommends we replace cartridge in Kitchen sink - Does this sound right?

Contractor's Assistant: How long has this been going on? And how severe is the problem?

Few months - problem getting worse and worse. hot water inconsistent - really hot then cold or have to turn handle in shower all the way up - or need to run water for extended period before water gets hot. Make note - we live in apt complex - building super confirmed the issue is not coming from building,

Contractor's Assistant: Do you plan on doing the work yourself?

I had plumber replace shower cartridges in both showers. I will have them come back out for Kitchen sink - if this is the issue.

Contractor's Assistant: Anything else we should know to help you best?

Not that I can think of. Building super believes strongly that the issue is caused by faulty cartridge in either showers (replaced) or the kitchen sink.

Submitted: 4 months ago.Category: Plumbing
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Answered in 9 minutes by:
12/27/2017
Plumber: Rick, Construction Supervisor replied 4 months ago
Rick
Rick, Construction Supervisor
Category: Plumbing
Satisfied Customers: 24,027
Experience: Licensed Master plumber with 40+ yrs. experience.
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Does the same thing happen in bathroom sinks?

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Customer reply replied 4 months ago
but bathroom sinks have been more consistent than the showers and kitchen sink. Bathrooms are also double handle.
Plumber: Rick, Construction Supervisor replied 4 months ago

Sounds like a building problem to me no matter what the super claims. But is sounds like you'll need to replace the kitchen faucet or turn it off under the sink to prove to him his claim is false.

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Customer reply replied 4 months ago
I agree with this logic. However, he has stated that if it was an issue with the building other units would be experiencing the same problem - currently I am the only one.
Plumber: Rick, Construction Supervisor replied 4 months ago

His claim has no merit if that's his only proof. So if you do what he says (or shut the kitchen off under the sink) he'll have no choice but to confront his error. This is not uncommon in multi-unit buildings and typically is way beyond the expertise of a super to resolve.

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Customer reply replied 4 months ago
Since the shower cartridges have been replaced and I shut off the water to the kitchen sink (both valves under sink) and I still am not getting hot water to flow correctly in showers or bathroom sinks - the issue points more toward the building? Or could the issue be that the kitchen sink needs a new cartridge?
Customer reply replied 4 months ago
I guess I am wondering is there truth to faulty cartridges as the cause to hot water issues? And simply we don't know which one is broken so we replace all of them?
Plumber: Rick, Construction Supervisor replied 4 months ago

With the kitchen shut off you've eliminated that possibility. Faulty new cartridges are extremely unlikely. You've done what the super said It's time to press him on another fix.

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Customer reply replied 4 months ago
Understood. Could a faulty pressure balancing cartridge in the kitchen sink cause hot water issues through out the entire apt?
Plumber: Rick, Construction Supervisor replied 4 months ago

The kitchen does not have a pressure balancing cartridge.

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Customer reply replied 4 months ago
Koher single handle does have a cartridge?
Plumber: Rick, Construction Supervisor replied 4 months ago

All single handle faucets have a cartridge. Only shower valves are pressure balancing

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Customer reply replied 4 months ago
Ok so then is it possible the cartridge in the kitchn sink be causing the issue? Given the fact the showers have been replaced
Plumber: Rick, Construction Supervisor replied 4 months ago

Not possible since you shut the kitchen off under the sink and the problem persists. With the water off to the faucet it is impossible for it to have any impact on anything

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