The pool I am maintaining with BBB came with zero data. I'm trying to determine the volume - I started out thinking it was much larger than it is - each time I calculate things I get smaller results.
I am very sure it's about 16' wide. I used my 16' pole to check this. I'm pretty sure it's 32' long based on this. However I haven't measured it accurately with a tape measure. That part is easy and I'm going to do it today. (I've only had control of the pool since Thursday). The tricky part is the average depth. The pool is very shallow on the shallowest part - I think 3'. Then about 1/3 of the way towards the deep end it starts getting deeper roughly ending up at 5', then the last third of the pool it goes deeper still to about 5.75' which it maintains for about 1/5th of the pool surface then quickly sloping back up to the walls (about 4' deep before getting vertical. The sides in the middle and deep end slope as well. It's more noticed in the deep end.
I read somewhere here that I could use an oval pool to approximate this sloping side part. If I plug in an average depth of 4.5' and 16x32 oval I come up with about 15,400 gallons. Is that a good approximation? I'll keep watching how chemicals react and if I ever have to pump the system dry and refill I can use a flow meter to measure the exact fill - but in the meantime am I in a rational position to assume 16,000 gallons?
If I recall from reading here 20% +/- of the total is not too bad for a starting estimate of volume. My original estimate was 19200, then 18200, then 17200, and now 15,400... 16000 +/- 20% = 19200 - 12800; surely somewhere in there lies the true size - right?
On to the runtime question. The pool was already setup with a timer. The filter is set to run from 8am - 10pm every day. That's 14 hours a day. It's not clear if this is necessary or if this is just a swag someone took. How do I determine the flow rate - is there a meter for that that pool companies can use?
The pool has a main drain and a skimmer, and three returns - two on the recessed stairs and one on the side midway down the side opposite the skimmer. The skimmer is closer to the deep end. There is also a slide dumping to the deep end. The flow rate on the two returns on the stairs is very good. Both have "eyeball" diverters. The flow rate on the return on the side of the pool is anemic. There is no eyeball on this return but it looks like there should be. Since I Have to fix this anyway - what do you guys think of the rotating eyeballs? I have seen them advertised and they show them with a dye test and show how much more quickly chemicals are distributed in the pool. While that's not often a requirement - I wondered if there was any benefit to it.
The valves on the pool are weird. I have yet to figure out how to get any flow from the main drain - if I open valves too far I suck in air - if I leave them half open each they work fine. I need to replace one anyway due to broken off tabs so I'm planning to get a pool company involved for that.