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| Thread ID: 57680 | 2005-05-09 12:07:00 | Totally OT - Calling all plumbers... | Tony (4941) | PC World Chat |
| Post ID | Timestamp | Content | User | ||
| 353738 | 2005-05-10 09:47:00 | My partners a plumber. He said A) not enough symptom descriptions B) Its probably the thermostat C) The temperature gauge thing you have doesn't mean s*** He says ring him 8328654 |
pctek (84) | ||
| 353739 | 2005-05-10 10:07:00 | I'm not a plumber, but the valve is called an Ajax Valve, which is a pressure releasing valve, generally brassy in colour, with a rubber diaphragm in the centre. These are generally located on the hot water cylinder in a standard electric cylinder installation. They can fail, spurting water out of the roof / not allowing pressure to release = big bang / blow water out, flooding the house. I saw two houses today where they were flooded as a result of failure of the Ajax valve. Info added as a general FYI .... Your installation sounds different to this set up though. |
Jester (13) | ||
| 353740 | 2005-05-10 11:07:00 | the valve is called an Ajax Valve Thanks Jester... that's the beggar I was thinking of. Ours was replaced which cured symptoms similar, but not identical to, the ones that Tony's experiencing. |
Greg (193) | ||
| 353741 | 2005-05-10 11:54:00 | My partners a plumber. He said A) not enough symptom descriptions B) Its probably the thermostat C) The temperature gauge thing you have doesn't mean s*** He says ring him 8328654One of my initial suspicions was the thermostat, but the fact that it has been happening when the immersion heater was turned off seems to argue against that. The "temperature gauge thing" is certainly not an accurate indicator of the water temperature, but it does show whether the temperature is going up or down. Why does he think it is a total waste of time? |
Tony (4941) | ||
| 353742 | 2005-05-10 12:04:00 | well the way i see it its either boiling and blowing the valve (which is easy to see due to the steam comeing out) or the seal in the valve is stuffed in which case change the valve. the problem we useally have is the wetback boils the tank which pops the valve then the pressure from the pump keeps the valve open so it pumps the water out all day long :( |
tweak'e (69) | ||
| 353743 | 2005-05-10 21:19:00 | the pressure from the pump keeps the valve open so it pumps the water out all day long :(I think that is what happened when the continuous venting was occurring. As I write, (8:13 a.m.) there has been a series of venting events since I got up this morning and turned the immersion heater on, but it seems to have stopped now. :confused: :confused: :confused: :confused: | Tony (4941) | ||
| 353744 | 2005-05-11 01:18:00 | We've just had the supplier expert visit, and this is his analysis: When the system was installed, our plumber installed a frost valve, but put it in the wrong place. It should have been attached directly to a lower corner of the solar panel, but in fact was installed at the highest point of the system into the outlet pipe! As a result it has constantly been exposed to hot water that it was never designed for, and has eventually failed. The remedy is to replace the failing frost valve with an air bleed as it is the highest point of the system, and to install a frost valve in the proper place. Reid Technology who supplied the system have been extremely helpful in sorting this out, and they certainly have our recommendation. Pctek, we will be using Reid Technology's own plumber to rectify this as he is obviously very familiar with the system, but thanks for the offer. Unfortunately we have lost contact with the original plumber, or we would be having a few words! Thanks everyone for their input and suggestions - another example of what a great bunch of people PressF1ers are. :thumbs::thumbs::thumbs::thumbs: |
Tony (4941) | ||
| 353745 | 2005-05-11 06:57:00 | I'm not a plumber, but the valve is called an Ajax Valve, which is a pressure releasing valve, generally brassy in colour, with a rubber diaphragm in the centre. They stopped making Ajax valves. They're now Nefa valves. |
pctek (84) | ||
| 353746 | 2005-05-11 07:04:00 | They stopped making Ajax valves. They're now Nefa valves. Probably to escape the liabilty claims. Wind the company up and start again with a new name :groan: |
Jester (13) | ||
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