patching repair in hot water cylinder

[CXR100]

hi all ,
anybody know how to repair a hole in a hw cylinder, had one today with a half inch crack in , it was a primatic cylinder in a small cupoard so didnt fancy replacing it, somebody had droped something on it and dented it (hence the crack) it was only a hairline crack , but i only managed to solder it close on the third attempt, anybody have a better way of doing this than soldering them?? was thinking of trying araldite 2 pac glue or similar??

 

[quality]

phosphorus brazing is what they use to make them although repairing a crack would seem a bit of a bodge to most

 

[PETE 123]

Had one once where owner drilled door and went into cylinder. Used a 2p coin and it worked

 

[bonzo1974]

Loving the 2p coin idea! will commit that to memory! Have also had to repair cylinders, but really by the time one area of the cylinder has degraded, how likely is it that the rest is due to follow. The annoyance of fixing a leak only to fill it and find that it's not completely sealed and having to drain it again to re-solder takes for ever. Am toying with getting a single impeller pump to help draining cylnders.

RM Solar Cylinders made me a replacement for a Hercal (who wanted 7-10 days from flash to bang) with extra tappings wherever I wanted them, ordered at 3pm on the day and had it to PTS by 9am the next morning. Very good customer service.

Primatics are awful anyway (I have one in the house I rent) tell the customer to stop being so tight and get a proper system in!!

 

[PlumbBobBob]

Am toying with getting a single impeller pump to help draining cylnders.

i've got one of those pumps powered by a drill, perfect for this.

 

[Gray0689]

I have a little syphon thingy it's thing shaped like a little bottle fits in end of hose and has a marble in it drop in top if cylinder give a couple of tugs and water is syphoned out pretty quickly it's the best wee tool

 

[Billy Bob Bob]

hi all ,
anybody know how to repair a hole in a hw cylinder, had one today with a half inch crack in , it was a primatic cylinder in a small cupoard so didnt fancy replacing it, somebody had droped something on it and dented it (hence the crack) it was only a hairline crack , but i only managed to solder it close on the third attempt, anybody have a better way of doing this than soldering them?? was thinking of trying araldite 2 pac glue or similar??

lead stick and templars telux flux,drain it down, thoroughly clean and abrade the split use a moleskin to wipe the lead in

 

[REDSAW]

be interesting if that plumbing glue works with a plate to cylinder?

 

[Keefy]

I repaired/patched one which had been holed by a falling brick during a loft conversion by cutting a small piece of 22mm copper, hammering it flat then soldered it on. It was pure on-the-spot improvising which worked a treat but not something I'd like to do again.

 

[TBServices]

i've got one of those pumps powered by a drill, perfect for this.

Ditto. Brilliant tool and cost about £2 lol

 

[CXR100]

to be honest the repair i made today looked a mess! but tank had the jacket to go over it , house is being redone in the next 2 years, so in a way its just a temp repair, was thinking of fiberglass filler? and try to really push it in the crack??

 

[Best]

to be honest the repair i made today looked a mess! but tank had the jacket to go over it , house is being redone in the next 2 years, so in a way its just a temp repair, was thinking of fiberglass filler? and try to really push it in the crack??

Won't work. Copper will flex & crack will open up. Easiest way is soldering. A bar of solder & moleskin as Gas man said, is a long lasting fix. Just keep the area to solder hot enough as the cylinder will draw the heat away very fast & obviously keep it clean. Wipe it like a lead joint.

 

[REDSAW]

drill the ends of the crack to stop it spreading first.