Daikin LWT

That’s great you’ve seen it higher.

I was in the same position, I recollected (but had no evidence- monitoring etc) of low 30s l/m, and noticed once I hooked my system up to EmonCMS it wasn’t going beyond 22l/m….got back to 34l/m after cleaning both.

This was one year and only one of the two filters/strainers: