Suggestions on Pump to Filter Connection

[nicole12]

I just don't like the hose connection from the pump to the filter. The hose has no give to it and it's a little too big for the connection, yet I have the size down and it's a little too small for the connection. The hose is strained where the ends are glued on and it ends up leaking. I applied some silicone and it solved the problem. I would just like to replace that hose all together with something more reliable.

Problem is that with my pump the union nut that I need is next to impossihble to find. I could take the hose I have now and cut off the union nut that I need.

Wondering what suggestions/options are there for replacing this hose. I live in Mass and this is disconnected every season to take the pump indoors so I want something that can come apart fairly easily.

Here's a picture. Oh and my pump doesn't have internal threads that's why I need that so hard to find union nut. Brought it to a pool store and every nut they have it either too big or too small. I was able to order a part that goes on the pump first that will give me a male end with threads to work with.

[sevver]

Are both of the ends the same thread? Can you turn the hose over and attach it the other way? The reason I ask this is because you could get two male adapters, one for the pump and one for the filter, and then get two female PVC adapters and put a pvc union vertically in the middle of the connection.
I have never seen the connector hose like yours, but I agree with you, I don't like it either. Funny what engineers will come up with, you have tried and true methods that have worked for decades, and all of a sudden they have to try some new way of doing things, and of course everyone who saw the design and plans had to have loved it. I love plumbing, always trying to reinvent the wheel.

[nicole12]

No the side on the filter is the standard 1 1/2" and is threaded on the inside and the pump is some weird size a little bit less than 2" and threaded on the outside. I've seen pumps at the store that have the threads on both the inside and outside, mine doesn't.

Once I have the part in that I ordered and cutting the hose I currently have to get that union nut off I will have 1 1/2" male threads on both sides.

[nicole12]

So with that idea would the whole connection be PVC or do I have hose too? I'm sorry for the ignorance I'm new to PVC. I did look up what a PVC union looks like, is that what would come apart at the end of the season?

[alexnco]

Hi Nicole, your pump and filter appear to be an AstralPool blow-molded Millenium model with multiport valve on a monobloc (made in Spain), we have the same model series (our filter cannister is larger) and it seemed to me that most, if not all, of their piping is 1.5" although perhaps their threading is metric! Maybe someone has actually measured it or contacted AstralPool and asked them ( www.astralpool.com ) I've sent them a request since I'm also curious about our setup. If they respond, I'll post here.

Out of curiosity, is your pump like ours, the dual speed unit (SENA pump model SEN1815 with a "Vernis Motors" electric motor)?

Alex in OK

[nicole12]

My pump is the 1800 (Model 1815) Series Single Speed, 1.5hp with a Century Motor.