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Post by endfeed on Nov 27, 2020 21:05:13 GMT
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Post by battle1066 on Nov 27, 2020 21:40:22 GMT
Had a job at a community center today, infrared touchtaps, to a toilet area, all on t.m.v's, hot water fed by a zip hot water heater (same as in picture) problem was/is the last tap on the run flows perfectly fine and then all of a sudden starts spluttering with air,then runs ok again. All other taps are running fine. I've changed the battery packs to the infrared taps and all seems ok but I don't feel I've cured the problem! Any thoughts guys, I'm wondering if expansion vessel has anything to do with it? View AttachmentView AttachmentHow long into the water demand period before the air appears - what's the distance between basins and does the pipe change from the other basins installed eg does it go up and over and the rest are level?
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Post by tomplum on Nov 27, 2020 21:47:18 GMT
how many taps and do they have separate mixers or one mixer feeding all taps, there might be a complication between mixers if the check valves are bouncing about trying to level out the water pressure,
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Post by endfeed on Nov 27, 2020 22:32:48 GMT
Had a job at a community center today, infrared touchtaps, to a toilet area, all on t.m.v's, hot water fed by a zip hot water heater (same as in picture) problem was/is the last tap on the run flows perfectly fine and then all of a sudden starts spluttering with air,then runs ok again. All other taps are running fine. I've changed the battery packs to the infrared taps and all seems ok but I don't feel I've cured the problem! Any thoughts guys, I'm wondering if expansion vessel has anything to do with it? View AttachmentView AttachmentHow long into the water demand period before the air appears - what's the distance between basins and does the pipe change from the other basins installed eg does it go up and over and the rest are level? The men's and ladies toilets are next door to each other,the water heater is in the middle of the two rooms, pipes go up along the ceiling void down to 3 basins all next to each other.👍
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Post by endfeed on Nov 27, 2020 22:34:39 GMT
how many taps and do they have separate mixers or one mixer feeding all taps, there might be a complication between mixers if the check valves are bouncing about trying to level out the water pressure, 3 basins all have their own tmvs👍
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Post by endfeed on Nov 27, 2020 22:36:22 GMT
how many taps and do they have separate mixers or one mixer feeding all taps, there might be a complication between mixers if the check valves are bouncing about trying to level out the water pressure, that's something I could try, putting a new mixer valve on👍
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