Plumbing issue on CADE S2 900 Return Line

[Reefer825]

I recently purchased a CADE S2 900 and I'm having an issue hooking upy return pump. I do not know the size of the CADE return line? 3/4 fittings are a little loose. My Neptune Cor20 didn't come with any adapter's to fit the CADE return line. Does anyone know what size coupling I need to order? I'm running 1" standard PVC and I've ordered two coupling so far that will not work. I found a rubber connection with hose clamps but I do not like the way it works and I prefer to have it all PVC. Another question, Is the Neptune Cor20 return pump to large for this system? I had it hooked up and running with the rubber connection for about an hour and it seemed to have plenty of flow and did great. Was thinking of getting a Vectra S2 of the Neptune Cor20 is too much for this tank. It's a 105 gallons total. Any and all feedback is greatly appreciated!! This is my current mock up.

 

[blaxsun]

I think you’ll be fine with the COR20. Worst-case scenario, just run it a little slower. From what I understand the plumbing on the Cade is in metric?

 

[Reefer825]

Yeah, I just found out that it is metric. I was hoping is was standard because that's what I didn't like about my RedSea. Most local stores don't carry metric so you always have to order what you need.

 

[Seachelle]

I recently purchased a CADE S2 900 and I'm having an issue hooking upy return pump. I do not know the size of the CADE return line? 3/4 fittings are a little loose. My Neptune Cor20 didn't come with any adapter's to fit the CADE return line. Does anyone know what size coupling I need to order? I'm running 1" standard PVC and I've ordered two coupling so far that will not work. I found a rubber connection with hose clamps but I do not like the way it works and I prefer to have it all PVC. Another question, Is the Neptune Cor20 return pump to large for this system? I had it hooked up and running with the rubber connection for about an hour and it seemed to have plenty of flow and did great. Was thinking of getting a Vectra S2 of the Neptune Cor20 is too much for this tank. It's a 105 gallons total. Any and all feedback is greatly appreciated!! This is my current mock up.

Hello, I'm just wondering if you got this figured out. I've ordered one of these tanks and I'm trying to figure out what return pump to get. I thought the Cades had metric plumbing, but I saw this in the description of the 900 on Algae Barns page, so now I'm confused. "Return flow to the Aquarium is via a 1" PVC pipe."