Surging Water from Vent Pipe

JohnD · 29 Oct 2015

As you have an open vented system, it probably has some sludge and sediment in it, unless it was recently powerflushed, which may be obstructing correct flow.

It may help to give it a simple chemical clean, which will only cost you about £15.

Sentinel X400 can be added and pumped round in normal operation for about 4 weeks before being drained out. On the first day, it may help to turn off all your radiators except one, and go through the house doing that to maximise flow through each radiator in turn.

I bet you will get an alarming amount of dirt out.

45yearsagasman · 29 Oct 2015

View media item 29821Do it like that, as I've done many times, and it should fix your problem.

Gelf · 29 Oct 2015

Already done.

Magna clean picked up a lot of gunk,

Also radiators now working better than they have in a while.
Unfortunately, X400 doesn't help in my feed pipe if that has a partial block.

75pete · 29 Oct 2015

Talking of possible blockage in your feed, have a look at FAQs; Boilers and C H Question 12 ( Chris R) this is a simple and easy way to flush the feed and it works!

St0rmer66 · 29 Oct 2015

2 will definitely work regardless of 1.

Gelf · 27 Nov 2015

Quick update,

Bridged the vent and feed pipes.
Problem solved.

Comes back if the pump is set to 3, but it's fine on setting 1.

Thanks for your help.

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Surging Water from Vent Pipe

JohnD

45yearsagasman

Gelf

75pete

St0rmer66

Gelf

DIYnot Local

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