Plumb7 - where to add

Darando

Noticed the water pressure on my gas boiler drop over the last while and didn't come on this morning. Topping up with the tap in the hot press sorted that. Assume there is a small leak somewhere.

Saw the ads for Plumb7 and thought it would be a handy fix (apartment). Question is where to add it to the system. All radiators only have a bleed valve..so not like their video on the website. Also is it a case of let some water water out and not fully bleed system before adding? just make enough space for the additive?

System is a closed with a Vokera boiler.

PK27

If you have a heated towel rail in the bathroom it's an easy way to get it in. Undo one of the nuts at the top of the rail, symphony some water out with a bit of hose, (not the nicest if it gets to your mouth but it won't kill you) and pour in the plumb 7. I would close off the valves aswell as it will cut off the pressure in the rad if you're on a sealed system.
It may not even be a leak, you're blow off valve could be leaking, they're always trouble. Somewhere around your boiler you will have a 3 bar blow off valve and it has a pipe connected and going outside in case of over pressurization. These are always leaking out and would slowly let the pressure off your system.
Top up to 1.5 bar when finished.

Darando

Cheers for that - I don't think it's the relief valve as it's dry and haven't seen any water coming from it.

No towel rail unfortunately, just stuck with the standard radiators and bleed valves.

I saw the Sentinel Leak Sealer Rapid-Dose Aerosol ( http://www.sentinelprotects.com/uk/support/videos/sentinel-rapid-dose ) - looks a little easier to get into the system but not sure if available in Ireland (versus the pour in options). System doesn't need any draining etc. either.

Dtp1979

Darando wrote: »

Noticed the water pressure on my gas boiler drop over the last while and didn't come on this morning. Topping up with the tap in the hot press sorted that. Assume there is a small leak somewhere.

Saw the ads for Plumb7 and thought it would be a handy fix (apartment). Question is where to add it to the system. All radiators only have a bleed valve..so not like their video on the website. Also is it a case of let some water water out and not fully bleed system before adding? just make enough space for the additive?

System is a closed with a Vokera boiler.

How long does it take to drop from 1.5 bar to 0?

Darando

Prob 2 weeks...seems above normal from what I read. Thought it would be no harm to add the sealer (which contains inhibitor anyway).

I'll try heat merchants for an aerosol rather than the pour in. Seems an easier solution when pressurised. No joy in Woodies/B&Q which is no surprise.

Dtp1979

Darando wrote: »

Prob 2 weeks...seems above normal from what I read. Thought it would be no harm to add the sealer (which contains inhibitor anyway).

I'll try heat merchants for an aerosol rather than the pour in. Seems an easier solution when pressurised. No joy in Woodies/B&Q which is no surprise.

Your multi sealer/inhibitor isn't the solution. It'll prob do more harm than good. It's meant to be added to a clean system

JustTheOne

Oxypic is probably the best stuff you can get for leaks.

DGOBS

Has it been established that the leak is not on the boiler?