Di Canister leaking

[Ali16590]

Hi,


I just bought a new RODI system and my DI canister is leaking.

I’m not sure what I should be checking first—any advice would be appreciated.

Thanks

 

[redfishbluefish]

Since it's new I'm assuming the leak is at the juncture of the canister to the top portion and not a crack in the canister itself. The first thing I'd do is make sure it's on tight by using the canister wrench:

If that doesn't work I'd very lightly grease the o-ring with a silicone base lub....it can NOT be petroleum based. Plumber's grease is the common stuff as long as it's not petroleum based...comes in a small tube.