Thread: Plugging pressure pipe

I used them when I was pressure testing my bottom drain pipework and it held pressure for that but you may have more pressure depending on heights etc.

Alternatively can you quickly ram a rubber boot end cap on, you’d get a bit wet but wouldn’t be much and you would know it would hold, this assumes you aren’t needing to cut the pipe to get to it

Originally Posted by deejaysmi

Has anyone any experience of using one of these test plugs to seal a pipe pond side of the cut-off valve? (I need to move the valve).

https://www.bes.co.uk/drain-test-plu...t-point-15190/


It looks like it should work??

Or is there anything else you would recommend?

Yep, used them regularly for 30+ years for pressure testing swimming pool pipework to 15 - 20 PSI in all sizes from ½ inch to 6 inch and they're very good as long as they're tight and fitted square into the pipe.

A bit of advice for anyone who wants to use them for pressure testing; make sure the pipe is full of water with no air in when you pressure test it because pockets of air mask any pressure fall due to a leak and also, if the plug isn't tight or when you release it, it will come out like a rocket. (Only made that mistake once when the pipework was too complicated to exclude all air and the plug came out and hit me in the belly leaving me winded with a nasty bruise).

Seriously, you only need to pressure test pond pipework to 10 PSI and, if you can't get all the air out of the pipe, watch the pressure for a few hours to make sure the air isn't masking a slow loss of pressure due to a leak and stay well clear in case it slips because you haven't tighten it enough.

Also used one with success on 4" pressure.

Originally Posted by Manky Sanke

Yep, used them regularly for 30+ years for pressure testing swimming pool pipework to 15 - 20 PSI in all sizes from ½ inch to 6 inch and they're very good as long as they're tight and fitted square into the pipe.

A bit of advice for anyone who wants to use them for pressure testing; make sure the pipe is full of water with no air in when you pressure test it because pockets of air mask any pressure fall due to a leak and also, if the plug isn't tight or when you release it, it will come out like a rocket. (Only made that mistake once when the pipework was too complicated to exclude all air and the plug came out and hit me in the belly leaving me winded with a nasty bruise).

Seriously, you only need to pressure test pond pipework to 10 PSI and, if you can't get all the air out of the pipe, watch the pressure for a few hours to make sure the air isn't masking a slow loss of pressure due to a leak and stay well clear in case it slips because you haven't tighten it enough.

Is it wrong to have a picture of you doubled up at this point and finding it funny?

Originally Posted by Djstiles999

Is it wrong to have a picture of you doubled up at this point and finding it funny?

Fortunately for me I just wanted to do a pressure test on the pipework to make sure it was OK before other work could commence so I was alone with no one with me to witness or take a picture of my stupidity in my rush to get it done or I'd never have lived it down.

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