Adding a water auto fill valve to IG pool

[Anonymous [GDPR] European in the UK]

Huh? That hasn't answered the original question either, just a statement of wanting to know how it goes

You can add the water back at the pad, into the return line but a solenoid valve, double check valve and non return may be needed. Then you just need a level sensor in the skimmer or somewhere preferably out of eyesight. probably cost more than the $13 dollars though, for that you just get ugly things.