Hey guys, I'm changing my sand (just finished baquacil conversion) and have so far, removed the plumbing going into the multi-port. I removed the top of the multiport and seen that there is only a port for water flow...so that can't be the way to get the sand out. The drain plug does have a larger plug that it screws into. I started loosening this larger plug and did get some sand coming out. However it does not remove, only spins. I tried tightening this same plug...and it won't tighten either. Any help is appreciated.
The filter is a WMC Corporation F600 sand filter.
The Multi-port is made by Praher.