I just added the full height stand pipe and began the process of trying to find the sweet spot with cap hole size.
All to no avail.
The system that seems to work best is the complete removal of the standpipe. I have just the adapter in my bulkhead at the bottom of the chamber. This causes no rise and fall, no sucking sounds and has great flow. The only downside is the distance the water must fall, this causes the loud waterfall sound, which I cant deal with being only 5feet from my TV.
I have one more plan I need to try before I give up completely. I will cut my drain directly below the bulkhead, leaving enough pipe to glue a 30degree or similar (I hope western pump sells) elbow. If I just use a 45degree elbow from that point the drain line will be in a very awkward position.
Cross fingers.
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If it is just us,
It seems like an awful waste of space.
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