Flexible PVC Coupling?

[HomeSlizzice]

Has anyone ever used a Flexible PVC Coupling like this one from home depot?

https://www.homedepot.com/p/Fernco-1-1-4-in-x-1-1-4-in-Flexible-PVC-Coupling-P1056-125/100055392


I have a CADLights tank, and the plumbing is an absolute nightmare. The final output part of the return is too short so I get a constant water flushing noise. Because they use Metric UPVC, instead of the standard schedule 40 PVC finding a solution to allow me to add more pipe to the return has been quite the challenge. I found these while looking for additional fittings at home depot. I was able to secure it to the CADlights plumbing by simply screwing it in. Feels pretty secure to me.

Has anyone ever used one?

 

[KStatefan]

I have used a furnco coupler a number of times but never on an aquarium.

 

[kirbuno]

I have used them in a pond situation to isolate vibration. Might be good on an aquarium to help with the potential cracking of the tank at the drilled port. They do pretty well but I wouldn't use it where there is any back pressure unless you are connecting to a ribbed fitting. I have had them slip off of a smooth fitting when I got some back pressure. They are also not UV resistant.

 

[Reefer Reboot]

I use them on the plumbing to my return pump to isolate vibration. So far no problems, it's been two years now.

 

[HomeSlizzice]

Well it will slip over and secure to the CADLights plumbing in the drain line. So for me, it’s working so far!