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Post by rocketmanbkk on Dec 14, 2017 16:25:32 GMT
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Post by tomplum on Dec 14, 2017 17:01:33 GMT
WoW, thats well blocked,,  |
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Post by endfeed on Dec 14, 2017 17:12:04 GMT
Bloody hell,now that's what I call a blockage¡!!!!
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Post by tomplum on Dec 14, 2017 17:13:38 GMT
power flushing would't move that,, smiley-sad056 nay
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Post by battle1066 on Dec 14, 2017 17:40:49 GMT
power flushing would't move that,,  I had a job like that where the system really needed re-pipe but offered the owner the choice of trying it a month will car coolant (25 litres) in the system to breakdown he magnetite and fit the Magna Clean to collect the contamination for removal. It worked great, I and had the owner clean the filter every day in fact at the start he was on twice a day. The result was no more water pipe banging or boiler kettelling, cost of coolant £45. |
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Post by rocketmanbkk on Dec 14, 2017 17:42:13 GMT
power flushing would't move that,, smiley-sad056 nay No chance It was big lumps, solid, 2 other plumbers been & didn’t fix it. Now lovely & warm Been no heating for 3 weeks! Also, magnaclean caked. |
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Post by crowsfoot on Dec 14, 2017 21:10:23 GMT
Serious amount of shite in there rocky, one of the worst I've ever seen!
What was the header tank like inside?
Suspect some "pump over's" been happening at sometime for it to get like that.
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Post by rocketmanbkk on Dec 15, 2017 7:35:28 GMT
Serious amount of shite in there rocky, one of the worst I've ever seen! What was the header tank like inside? Suspect some "pump over's" been happening at sometime for it to get like that. Yep, the header was nice & steamy! It didn’t have a vent over the top it had a feed in 15 & then another 22mm pipe. My mate had never seen it. It wasn’t too dirty to be honest as other plumber had tried to fix. We out x800 in the inhibitors |
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Post by tomplum on Dec 15, 2017 8:55:51 GMT
Thats called a combined feed and vent rocky, It was very common in the eithies and ninties to overcome the sucking of air into the system,  |
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Post by rocketmanbkk on Dec 15, 2017 12:55:47 GMT
Thats called a combined feed and vent rocky, It was very common in the eithies and ninties to overcome the sucking of air into the system, Cheers Tom. I thought so but wasn’t 100% |
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Post by crowsfoot on Dec 16, 2017 8:22:04 GMT
I've also seen that done tom and like you said it works! However I don't think it is in the approved things of plumbing book  ! A more modern thing to do (which I have come across) instead having the 22mm vent/feed is to replace the header tank with an expansion vessel and PRV set up. However, I don't think that this will be in the approved things of plumbing book either!! N.B. I'm currently on with a job that's been pumping over for years, the expansion tanks been shoved right into the apex of the false roof as high as possible so no access to the ball valve without taking the tank out - it's so high!! In the cold weather you can see steam rising from the flashing and roof tiles from outside when the heating is on !! It's gone to the boffins to try and sort it out! I'll let you know if I get it back though. |
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Post by endfeed on Dec 16, 2017 8:44:10 GMT
Thats called a combined feed and vent rocky, It was very common in the eithies and ninties to overcome the sucking of air into the system, can you do a classroom talk,in they plumbers brew cabin on these type of system tom! please 👍 |
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Post by rocketmanbkk on Dec 16, 2017 9:44:59 GMT
I've also seen that done tom and like you said it works! However I don't think it is in the approved things of plumbing book ! A more modern thing to do (which I have come across) instead having the 22mm vent/feed is to replace the header tank with an expansion vessel and PRV set up. However, I don't think that this will be in the approved things of plumbing book either!! N.B. I'm currently on with a job that's been pumping over for years, the expansion tanks been shoved right into the apex of the false roof as high as possible so no access to the ball valve without taking the tank out - it's so high!! In the cold weather you can see steam rising from the flashing and roof tiles from outside when the heating is on !! It's gone to the boffins to try and sort it out! I'll let you know if I get it back though. That’s turning it into a sealed system. Can be done. What’s the pros & cons of it? Open vent v sealed system? |
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Post by tomplum on Dec 16, 2017 9:45:20 GMT
ok endfeed, will do, |
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Post by battle1066 on Dec 16, 2017 15:25:55 GMT
I've also seen that done tom and like you said it works! However I don't think it is in the approved things of plumbing book ! A more modern thing to do (which I have come across) instead having the 22mm vent/feed is to replace the header tank with an expansion vessel and PRV set up. However, I don't think that this will be in the approved things of plumbing book either!! N.B. I'm currently on with a job that's been pumping over for years, the expansion tanks been shoved right into the apex of the false roof as high as possible so no access to the ball valve without taking the tank out - it's so high!! In the cold weather you can see steam rising from the flashing and roof tiles from outside when the heating is on !! It's gone to the boffins to try and sort it out! I'll let you know if I get it back though. That’s turning it into a sealed system. Can be done. What’s the pros & cons of it? Open vent v sealed system? Basically Rocky no more F & E tank and any of that black sludge in the pipework but I've never seen one where the vent isn't as a swan neck above the F & E tank. |
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