Copy that. Gunite has been delayed until Wednesday so the PM will be out tomorrow a.m. to install the negative edge returns/channel drains (which the manufacturer has told the PB they are okay to use as returns). I have a list of things to discuss and those returns to the basin is one item.
It just dawned me, although it doesn't seem to be the same reasoning the PB has, that I will be losing a lot of water due to evaporation over the weir wall to simply circulate the basin water. It's just June and temps in my neck of the woods are hovering around the century mark in the afternoon and it'll stay that way at least through late September. So, maybe there is a method to the madness in terms of circulating the basin through the main pump. I'm not sure how much I can actually save by bypassing the weir but any amount is beneficial.
This is what I need clarification on. I've learned it is not a good idea to have two pumps pulling from the same line at the same time. I suppose if the purpose is to solely circulate the water in both the basin and pool, only the filter pump would be in operation. However IF the main drain and basin drain is teed together both pumps would be pulling from the same line when the negative edge pump is in operation since the drain lines are teed together. Not good. I guess if the lines teed together at the pump, a 3-way valve could be used but then the line has to reduce to 2.5" and that defeats the purpose of having a 3" drain connection at the pump. To be honest, I'm not sure the PB will have the answers. That's why this forum is so very valuable.
Yes, it will be in the basin and will either be connected to an irrigation zone or directly to a spigot/valve.
Every pump will run every day. The water feature will run a short while if the pool is not being used - 5 minutes or so. How long the negative edge pump will run will depend on if/how the filter pump will recirculate the water to/from the basin. I envision the filter pump running a few to several hours a day. @BigPapaSmurf who is quite knowledgeable and I've gotten to know, runs his negative edge and filter pumps 24/7/365. I'll probably find a happy medium.
Stop the press. The PM has advised that the drawing was mislabeled. The returns to the basin are actually "circulation basin" returns and will be on the same loop as the negative edge returns to the pool. There will be a 3-way valve diverting flow to the basin or to the pool.
I made an error on my calcs. Gotta remember to convert cf to gallons! My estimate is now around ~23,500 Gal. The PB has agreed to swap an IC60 in place of the IC 40.
I hadn't thought of that angle. Valid point, thanks. Soooo much to think about when building these cement ponds. In my case, a pond with a pond!
All valid points, as well. The first one was in the back of my mind and concerned me a bit. I guess it would like having two different bodies of water of vastly different sizes being treated chemically the same. While I definitely want and plan on using the edge, I was enamored with the idea that I could avoid losing a lot of water due to evaporation while save on operating costs. Best laid plans of mice & men...
Please advise whether this makes sense and what may be needed or not needed. I based this off input received by someone in the industry.
I haven't done enough homework regarding how I want to operate the spa. It seems I would be back in the same situation (basin returns) by having the SWG in the last location in terms of circulating the same water and not providing fresh chlorinated water. I have no idea how to adjust the SWG when going from pool to spa mode. The spa is a small body of water, therefore needs less chlorination? I'm sure there's a science to it.
