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Perhaps might try one of these http://www.toolstation.com/shop/Plumbing/Pan+Connectors/Flexible+WC+Connector+Straight+160mm/d20/sd2887/p52263 its a fair bit more expensive though.. A

No probably not they are quite big and not that flexible.. it looks like the soil pipe is coming in at an angle to the pan. http://www.toolstation.com/shop/Plumbing/Pan+Connectors/Macfit+WC+Connector+14+Angle+110mm/d20/sd2887/p91848 So something like this should help it line up better...

The Collar is just a bit of rubber. When you plunged it all you did was find the weakest joint and pushed the water out. Without the pressure from plunging it shouldnt be leaking. try toolstation.com for lists of parts.

I would un-block the drain, dry the cuff out with a hair dryer, and keep my fingers crossed that you havent wrecked the seal. Hopefully it will just re-seal itself. A

get a kg bag of salt from tesco, go to the top of the soil stack, tip it in and wash down with a a couple of litres of hot water. Might even be better to pre mix the salt and hot water. I bet you probably had a blockage somewhere as you would need the pipe to backup before you had any...

reminds me of something in the oven, like the wire supports? A

Re derating: Again life is never simple.... Re Magnetic cleaners Indeed one wonders ;)

For me this has been very interesting.. It seems that all radiators have a design flow. Flow of water needed to give the desired output. And by many of our temperature measuring techniques you are trying to approximate the flow through the radiator. So what we need is Flow meter...

I agree anyone wanting to contribute, as long as the information shared is not dangerous should be allowed to do so. I would like to thank everyone for their comments..

I think you maybe right. after reading a little more, it seems that flow through the system is key, pressure changes are probably not important at all.. edit: a useful page http://www.triatek.com/TriaUtil/circlediff.htm illustrating that pressure changes across a duct can be used to...

I think this is probably a really important issue....

I have had a brief skim, and it looks very comprehensive.. a very useful suggestion. Maybe this should be linked the FAQ....

I think this would be true if the hydrostatic head was constant across all radiators, and the length of pipe work to all other components were equal. So in a flat this is probably a valid assumption. However in a house, i think this may be unrealistic..

I agree that the system may not be balanced. but isnt the name of the game to hot radiators? I suspect the lack of balance, specifically to much pressure may cause problems to the pump, and also may be less efficient than hoped, and probably a noisy system... A

Is balance an ilussion. if you had no TRV is could accept the system may be balanced, but with TRV as one closes the pressure in the system will be increased and may put the others out of balance. I assume the pressure difference caused by the closing TRV will not be equal across the whole system..

Indeed a shortcut that i found useful, and the radiators all seem to be hot. Potentially others may find it useful, but... like all things has limitations. A

I completely agree. However if you know the radiator is off, then you begin to open it, the water squeezes through, makes a lot of noise etc. As you carry on turning the flow becomes smoother, less noisy i.e. the radiator is more open.. then it becomes quiet, the valve is nearly fully open or...

Thanks ajrobb, my LS seem to be much more graded, you almost have to turn them 3 times to get the water flowing a little bit. Do all pumps have speed settings. I looked on mine and couldnt see it? But more than my problems, Does the approach of listening for running water sound like...

Hi All, I read the faq about balancing radiators and want to pose a question. The boiler circulates water to all the radiators and because of the different lengths of pipe work and organisation of radiators some get more than their fair share of hot water. Leaving some luke warm or cold...

If you make exhausts for bike and cars, you probably have access to some CFD engineers. You might be even able to do the CFD yourself, and the machine one up. But it wont conform to the marvellous red tape we have in this country. You will probably find you could quit your job, be...