bunging a cwsc

[jldplumb]

i have to bung a tank to change some taps on a job tomorrow as there is no gate valve on the feed. I've heard horror stories of imploding cylinders. How does this happen and how is it avoidable? Should I bung the feed tapping only at the tank and not the open vent?

 

[SimonG]

I would just knock off the mains drain tank, fit new lever valve on cylinder cold feed and change taps. Makes life easier.

 

[jldplumb]

I would just knock off the mains drain tank, fit new lever valve on cylinder cold feed and change taps. Makes life easier.

I would normally, but I just want to be in and out as i'm doing it as a favour and not charging

 

[turnpin]

I'm with Simon on this this will impress your customer at the same time......regards Turnpin:yes:

 

[SimonG]

Oh no a favour, worst type of job. Just remember no good deed goes unpunished 🙂

 

[townfanjon]

Watch out for the dreaded 'air locks' lol

 

[dave1]

Favour job equals trouble! Drain all day long.

 

[jldplumb]

Watch out for the dreaded 'air locks' lol

its ok I come equipped with wet vac!

 

[jldplumb]

Oh no a favour, worst type of job. Just remember no good deed goes unpunished 🙂

another reason I dont want fit a new valve aswell. Its 1 more thing that WILL go wrong

 

[solutions]

i have to bung a tank to change some taps on a job tomorrow as there is no gate valve on the feed. I've heard horror stories of imploding cylinders. How does this happen and how is it avoidable? Should I bung the feed tapping only at the tank and not the open vent?

Bung the feed but not the vent. Just be aware it could let go whenever it likes.
If you bung the vent and the feed and someone opens a ground floor hot tap the water leaving the cylinder cant pull water or air in behind it so it sucks the cylinder sides in instead just like sucking the straw on a kids juice carton. Bye bye cylinder.

 

[plumben]

If your doing it as a favour then defiantly fit full bore lever valve, it'll save any headaches if it goes wrong or when your doing the next favour

 

[Stigster]

Oh no a favour, worst type of job. Just remember no good deed goes unpunished 🙂

Last job I did a favour was to simply change some basin taps in the local pub. Turns out the taps were installed about fifty years ago and when I tried to undo the nut the basin cracked right through.

That saying is so true.

 

[gassafe]

I always use bungs on these types of jobs, customers love no wasted water plus I love no air locks!

Worst case you could fit bung, open hot water tap & cut a lever valve in on the tank outlet!

I use the monument screw in bungs

 

[jldplumb]

I always use bungs on these types of jobs, customers love no wasted water plus I love no air locks!

Worst case you could fit bung, open hot water tap & cut a lever valve in on the tank outlet!

I use the monument screw in bungs

ive got the regin ones, only ever used them on f & e tanks for changing rad valves. you think one will hold in a cwsc under the weight of the water in it? its only for a few minutes until ive cut a ballafix in?

 

[gassafe]

ive got the regin ones, only ever used them on f & e tanks for changing rad valves. you think one will hold in a cwsc under the weight of the water in it? its only for a few minutes until ive cut a ballafix in?

I have the regin bung ones too & also use them sometimes... The weight of the water & the suction from opening the taps gives it a nice firm hold in the tapping, go for it 🙂

 

[gassafe]

Bung the feed & leave the vent open tho...

 

[Deleted member 25704]

I have always used Champaign corks to bung cisterns and tanks.

Champaign corks are made of the highest quality and do not disintegrate. These can be rasped or filed to a sharp point for bunging. When removing cylinders, Champaign corks fit nicely into 1inch primaries to prevent sludge spills, when carting away.

 

[jldplumb]

Bung the feed & leave the vent open tho...

i thought i'd bung the feed and vent and then wet vac the taps...
You know to create some space in the airing cupboard lol :bucktooth:

 

[jldplumb]

I have always used Champaign corks to bung cisterns and tanks.

Champaign corks are made of the highest quality and do not disintegrate. These can be rasped or filed to a sharp point for bunging. When removing cylinders, Champaign corks fit nicely into 1inch primaries to prevent sludge spills, when carting away.

i'm not that upmarket, would blossom hill or lambrini corks work haha

 

[pete04030201]

why don't you turn the stop tap off an drain the cwst down then change taps an put service valves on simple .......