Grundfos / Aqua-Turn

idris

Member
Joined
3 Jan 2011
Messages
672
Location
Herts
Does anyone have an Aqua-Turn AT2525 adaptor for a Grundfos 15/50 or 15/60 central heating pump?

I have another brand of central heating pump that I suspect is just a re-branded Grundfos, but other than mounting bolt spacing for the impeller housing, I can't get any measurements out of Aquaturn. (They suggest I buy one and try it, but no refund if it doesn't fit. :( ) So I just need a couple of extra measurements from someone whose bought one.

Thanks.
 

Genesys01

New Member
Joined
10 Jun 2020
Messages
2
Location
London
Hi, yes I've just bought one. I used a 21.5 MM overflow pipe which fits great onto the aqua turn. I then used 90 and 135 degree 21.5mm connectors all bought from Toolstation. I used JBL 16/22 rubber tubes (2 x3m each) as well. I also used 25mm conduit tube to go over the end of the overflow pipe together with end caps together where necessary to stop water flow. And finally I used 2 x Uniseals (UO50) from Amazon on my canister filter. Works great. I may change some of the 90 degrees for 135's if I want even stronger flow.
 

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Genesys01

New Member
Joined
10 Jun 2020
Messages
2
Location
London
PS - I also used Fluval 305/6 - 405/6 rubber connectors to connect the rubble tubes to the overflow pipes
 

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