That tiny hole is the main reason why -- when I used to recommend tri-chlor feeders -- I recommended the Rainbow 320 inline. I'm much less enthusiastic about tri-chlor feeders now -- floaters work well, and are safer, unless you have small children who might 'mess' with them.
But, one thing that hasn't changed is that the Hayward feeders suck! They restrict pool flow horrendously, and the control valve doesn't. The proper place to 'install' those feeders, is in your garbage can.
I've never really understood why so many manufacturers of quality products will leave known pieces of garbage in their product lines. Hayward, Pentair, Sta-Rite (especially Sta-Rite) offer a mix of excellent products with some real turkeys which have well-known and well-understood problems. It doesn't make sense to me, but apparently it does to them.
Ben
"PoolDoc"
Bookmarks