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Post by rocketmanbkk on Feb 20, 2016 9:49:22 GMT
It looks a complete mystery to me.
I've worked on 2 with other plumbers but to just change the prv (?) from incoming main.
The hot water to bath would run the stop. It was said the vessel was emptying faster than the cold was filling. ??
Is that right?
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Post by tomplum on Feb 20, 2016 10:46:02 GMT
no its not right, the cold should fill faster in situations where the hot is emtying the tank faster than its going in you either need more water going in or a bigger tank , ssssss
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Post by rocketmanbkk on Feb 20, 2016 11:52:31 GMT
It was a big 300 off l tank but bath would run for say a minute then the water would run out. The pressure guage read 2.8 bar
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Post by Deleted on Feb 20, 2016 13:44:29 GMT
Are you saying the hot is running out and running cold ?
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Post by rocketmanbkk on Feb 20, 2016 14:49:52 GMT
No PB, the hot runs & then trickles to nothing.
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Post by Deleted on Feb 20, 2016 15:36:13 GMT
OK I'm with you. What's happening is its running the hot water out that is under expansion and then that exhausts its self pretty quick and runs to nothing, that points to the PRV and inline filter at fault stopping or reducing flow right down.  |
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Post by rocketmanbkk on Feb 20, 2016 15:40:46 GMT
Yes. I think so. I think they can be cleaned but maybe need replacing.
Thx for explaining.
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Post by Deleted on Feb 20, 2016 15:43:56 GMT
Yes. I think so. I think they can be cleaned but maybe need replacing. Thx for explaining. All modern combination valves are a whole unit and you would replace it back with a whole new unit. |
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Post by rocketmanbkk on Feb 20, 2016 16:17:35 GMT
Lovely thx.
They ain't cheap either.
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Post by tomplum on Feb 20, 2016 17:02:19 GMT
oh I see its unvented,,,I was thinking tank and cylinder, silly me  |
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Post by Deleted on Feb 21, 2016 10:47:57 GMT
Nice install. Just a couple of points shouldn't the pipework to the expansion vessel be no less than the connection sizes provided ie 22mm or above also prv teed in after the tundish should be before?
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Post by Deleted on Feb 21, 2016 11:15:56 GMT
Looking at Some of the installs I've seen gaslad I'll sleep easy at night. (Rules are for fools). Welcome to the forum .  |
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