favorite way to stop leak in hard plumbing

[stacksoner]

so I have a leak right after a union in on my manifold going to the UV I had to plumb out side the tank as it's HUGE.

I used oaty's fusion for the solvent weld as Of right now this is the only one I see.
of course its in a very hard to get space I would need to remove all my other plumbing.

here are some pics

its behind the union above the main return..

any tips or trick to deal with a leak with out redoing the whole think?
anyone try try the vacuum trick?
silicone ?
supper glue?

Here is another pic.


leaking at the joint to the union

Cut off the leaky union and reinstall both a new union and a gate valve

 

[ca1ore]

yup that's what I did. letting it dry until the morning that will be 12+ hrs will test again.

One other 'trick' is to mix some PVC shavings into a bit of solvent. You essentially get the PVC equivalent of thickened acrylic cement. Not the prettiest fix, but that'll take care of the one out of ten that just regular solvent won't.

FWIW, when did R2R become the reefing arm of overreactors anonymous LOL ..... I think you need to break the entire system down, replace all the plumbing and probably the tank too ....

 

[hart24601]

One other 'trick' is to mix some PVC shavings into a bit of solvent. You essentially get the PVC equivalent of thickened acrylic cement. Not the prettiest fix, but that'll take care of the one out of ten that just regular solvent won't.

FWIW, when did R2R become the reefing arm of overreactors anonymous LOL ..... I think you need to break the entire system down, replace all the plumbing and probably the tank too ....

I do hate to point this out but don’t you think that you adding “and probably the tank too” is an overreaction to a post where someone was trying to help with what they suggest is the best fix?

 

[fish farmer]

My favorite way is using 5 minute epoxy, slather that all around the leaky area. Then repeat.

I fixed a leaky bulkhead that way, the only way without completely taking my tank apart.

 

[ca1ore]

I do hate to point this out but don’t you think that you adding “and probably the tank too” is an overreaction to a post where someone was trying to help with what they suggest is the best fix?

It was a ...... wait for it ...... JOKE! I, at least, thought it amusing.

 

[hart24601]

It was a ...... wait for it ...... JOKE!

As was mine!

we are just a couple hilarious people!

 

[ca1ore]

Aren't we just ....

 

[Devaji]

I reapplied the solvent with out testing this AM. draining the tank of its FW and will start the slow process of filling up with RODI in the mean time I can mess with the leaky manifold.
I have had the tank for 4-5 months now guess i better try to move things along.
i'll let you all know how it turns out.

 

[Devaji]

My favorite way is using 5 minute epoxy, slather that all around the leaky area. Then repeat.

I fixed a leaky bulkhead that way, the only way without completely taking my tank apart.

I might try that if the solvent trick does not work before redoing the whole plumbing.

 

[Devaji]

Cut off the leaky union and reinstall both a new union and a gate valve

to tight for a gate valve + I have a gate valve right before the union as its going to my UV

 

[stacksoner]

to tight for a gate valve + I have a gate valve right before the union as its going to my UV