Drill Hole In Canister Intake?

I recently had my eheim pro 3 filter leak out the back where the power cord comes in. Luckily I caught it quick while it was still a small leak. However I wasn't able to fix it after several attempts as fast as replacing seals, taking apart and clean pump head. Probably have to get a new pump head for it but haven't bother since I'm now not trusting that filter these days. I've since replaced with a fluval 405 and fx4 however I'm constantly worried one will fail at something draining my 125 gallon onto my living room floor. I recently read about people drilling a hole in the filters intake valve below water surface so if a leak occurs once it dips below the drilled hole it will take on air instead of water preventing further leaking. Just wondering if anyone has done this and their results. Any ideas on the issues would be greatly appreciated just wondering if I should do it.

 

Many reefers with sumps drill a hole on the inside of the return 90 to prevent syphoning back in the return line .

 

I'm giving this a late bump as it seems like a really good idea, but I have no experience with canisters.

At face value a hole in the intake line, say 2 inches below the water surface, might effectively stop your entire tank draining out, should the canister start leaking.

Worth discussing pros / cons?

 

a quick search shows that a number of fish keeps have drilled a small hole in the intake tube just below the water line. i'm going to do this with mine, just in case.

thanks for the bump.

 

That’s a great idea and a great topic... the only con I would see is turning the filter off with every WC .. I honestly never turn anything off when I do my WC’s unless a filter needs maintenance that’s about the only time.. just for the record all my heaters re horizontal at the bottom of my tanks so I don’t have to worry about draining and having them exposed to air.