My pool has a disappearing edge. The edge's water basin (I call it the lower pit) can hold around 1,800 gallons of water. There are 3 drains, about 2" below the coping pavers, that are meant to drain water out of the lower pit -if- the water level were to get too high and overrun on top of the patio. The two blue arrows show 1 of the 3 drains -and- shows the adjustment knob for the drain located in the coping paver.
I *thought* the adjustment knob controls whether the drain actually allows water to pass through it or not (some kind of air/vacuum thingy I don't comprehend?) depending on if the knob is closed tightly, or opened (which seems to allow air through it based on the holes in the unit)
However, water will drain through the 3 drain holes, whether the adjustment knob is opened, or closed tightly. The 3 o-rings have all been replaced on each of the 3 different knob pieces, but that didn't help or change anything. Water will still evacuate out the drain if the plastic screw-in piece with the 3 o-rings is opened or shut tight. So, I'm looking for help in understanding HOW these 3 knob/adjustment things are supposed to actually work, and what is supposed to happened if the 3 knob adjustments are opened, and what is supposed to happen if they're closed?
(to prevent water for going out the the drains right now, I have to plug the 3 drain holes)
Can anyone help me understand the proper way they are supposed to operate?
Thanks,
J
I *thought* the adjustment knob controls whether the drain actually allows water to pass through it or not (some kind of air/vacuum thingy I don't comprehend?) depending on if the knob is closed tightly, or opened (which seems to allow air through it based on the holes in the unit)
However, water will drain through the 3 drain holes, whether the adjustment knob is opened, or closed tightly. The 3 o-rings have all been replaced on each of the 3 different knob pieces, but that didn't help or change anything. Water will still evacuate out the drain if the plastic screw-in piece with the 3 o-rings is opened or shut tight. So, I'm looking for help in understanding HOW these 3 knob/adjustment things are supposed to actually work, and what is supposed to happened if the 3 knob adjustments are opened, and what is supposed to happen if they're closed?
(to prevent water for going out the the drains right now, I have to plug the 3 drain holes)
Can anyone help me understand the proper way they are supposed to operate?
Thanks,
J