Has anyone ever had to change the laterals on a Cristal/Hydro Sud filter?
We’ve emptied it of sand but cannot reach the laterals. The standpipe does not move.
The guy helping me (with 20+ years experience of pool installations) is totally stumped, as was a friend who is second generation in pool installations.
A call to Hydro resulted in a brief - reach in and turn it.
These are large filters (we are having to do this twice!) and it is physically impossible to reach the laterals by reaching in with an arm.
It might by possible if a wrench was also used but that risks damage.
Although they look as though they split in two, they do not. It is a single unit. We had thought about dismantling them and taking them outside and trying in daylight but apart from having to dismantle most of the pipework it appears the doorframe will also have to come off.
So any ideas would be welcome. The filters were installed by the previous owner around 2006/7.