Anti lime bypass hose requirement

[Harpo]

Good afternoon, everyone,

Does anyone know if the Red (anti lime bypass hose) is required on pumps that are inside the sump? The pump in question is a red dragon 3.

Thanks

David

 

[Sean Clark]

That is used for cooling and flushing the rotor of the motor. I wouldn't remove it. If it is already missing or damaged than you could replace it with any appropriately sized reef safe tubing.

 

[Harpo]

The fitting broke off from the back of the pump. I have purchased a new fitting and hopefully an easy out will extract the piece of the fitting inside the housing

 

[Sean Clark]

Ouch! Good luck.

 

[Harpo]

Plan "B" is to drill out the housing and epoxy in a threaded plug. Option "C" is stupid expensive - buying a new housing. That will suck

 

[Sean Clark]

Silicone may surprise you if it is well implemented.

 

[Harpo]

I finally received the John Guest 8mm fittings. Per the instructions from Royal Exclusiv I will be gluing it in. Anyone need any John Guest fittings?

 

[Harpo]

The fitting above is actually wrong. The PM0308E is correct and needs to be used with an 8mm PVC tube that is glued into the back of the pump.

 

[Harpo]

Coming out of the back of my pump body is supposed to an 8mm PVC tube. I decided to upgrade to a titanium tube instead. Hopefully stronger than the PVC. Next, I will trim to 35mm and glue into the pump.

 

[Harpo]

Cut to length and superglued in place. Tomorrow I will test. Fingers crossed.

 

[Harpo]

Its alive. If anyone ever breaks off the lime bypass off the back of their Red Dragon LMK and I can help with the repairs.

 

[KittehsReef]

Its alive. If anyone ever breaks off the lime bypass off the back of their Red Dragon LMK and I can help with the repairs.

I have 4 of these pumps with broken fittings on them. Thanks so much for this little write up!