Ordered pretty much everything today so going on previous discussions with batteries I went for the Numax XDC over the Numax CXV both are 105ah but £35 of a difference. Apparently it's much better!
I'll assume that the controllers are all from Spring and pumps are around the same standard, never had a preference there so it's a Shurflo and Flowmaster.
Other than that there's nothing note worthy, tanks are tanks and I know who's driving my van so there's no drilling or modifications involved and it's back to a Wydale.
In previous years I had an issue with air locks using a diy setup so hopefully I'll avoid it this time round. Although folks do mount there pumps high up and claim there's no issue I'll probably keep them close to the floor.
I'll now fill the tank via the di due to running two pumps so I can still use the old resin to the max, not sure if it was an old wifes tale about stripping the resin if you fill it too fast?
Won't be fitting an immersion as it'll most likely cause a problem and I have a hot outdoor supply andI don't like hole saw attachments.
As HMan would say "that's about it" Although I did buy another Uni valve.