So I was getting a little sand in my returns this summer which made me check my internals on my Hayward 244 sand filter. I believe it is a 244 as the labels are completely faded and unreadable. It was here when I moved in 10 years ago so it is pretty old.
What I noticed first of all is the main pipe was broke down by the lateral housing but when I removed all the laterals and housing I noticed what apprears to be a small like 3/8 plug hole on the top of the housing that goes directly onto the internal of that housing area. There is a small hole on the side that appears to be where you would put a pin in there to hold the plug in.
Question is is this supposed to be closed? I would think so as with the plug missing it would seem to me that that would also be a good source for sand to enter as well.
If you are familiar with this and what I'm talking about I would appreciate to hear your thoughts on this and what I can replace my tube with. I am selling my house in 2 weeks and don't want to leave things this way.
Thanks as always..