Church pool RE-construction

[Sumo1]

Well, the pool renovation job is moving along but I need some advice. We'll be coring 3 new holes in the pool, two for returns and one drain. Will a 2 1/2" core be large enough to pass a 2" pipe? How about a 2" core for a 1 1/2" pipe? I know that seems like "Who's buried in Grant's tomb?" but I'd rather ask a dumb question than screw up the job.
Next question: We're setting new skimmers (level, which they weren't before) and were wondering, is there an ideal distance for the waterline to be from the bottom of the coping? We'll install 6" tiles so does that automatically make the answer 3" or can that vary? Thanks for your help!
Hal

[Sumo1]

Still no replies!? Come on, ladies and gents, I need y'all. Tomorrow's a pool work day and we've got sooo many questions
Question of the day: After we've patched any worn spots in the plaster layer (with white portland), we won't have enough money to plaster it this year. If we use 2-part epoxy paint to coat and seal the pool interior, how long would that treatment be expected to last? Two years or three? That would give us time to raise another $25K for plastering. Would that paint then cause huge problems for the plasterers? Or should we then just keep on using epoxy paint? Thanks again!
Hal

[Sumo1]

Still no replies!? Come on, ladies and gents, I need y'all. Tomorrow's a pool work day and we've got sooo many questions
Question of the day: After we've patched any worn spots in the plaster layer (with white portland), we won't have enough money to plaster it this year. If we use 2-part epoxy paint to coat and seal the pool interior, how long would that treatment be expected to last? Two years or three? That would give us time to raise another $25K for plastering. Would that paint then cause huge problems for the plasterers? Or should we then just keep on using epoxy paint? Thanks again!
Hal

Let's try again-HELP!

[Sumo1]

When we pour new coping for this pool, do we have to use those plastic control joint strips I see on some pools? Underneath those strips, is there just a regular troweled control joint? Suggestions or discussion? thanks
Hal

[waste]

Hal, it is my understanding that a concrete deck will crack, reguardless as to what you do. The plastic strips are just a bigger 'control' joint. My source of this info is in the public domain, you can go to www.straightdope.com or go to a good library and read the book itself (he's published 5 and it's in one of them - sorry I can't recall which one the ? was in, but if I get the time - I'll look through my copies)

[Sumo1]

RECONSTRUCTION UPDATE::
Well, the church pool is coming along slowly, in fits and starts, but coming along nonetheless. We've had so little participation from the congregation that we've given up hope of filling the pool at all this summer. We thought it would be "start the renovation and they will come" but we were mistaken. Worked on the pool this morning and we were three. Mike and I are always there but we never know if anyone else will show. Regardless, we're grateful for the help we get and we feel good about the progress so far.

We've now set all 6 skimmers in their bed of white portland and they're all level within about 5/8". Not perfect but close enough, I hope. Our target waterline is about 4" in the skimmer throat, so I think we're OK. The top wall/cap/coping is all formed, except a section where we're pouring gravel in to fill the old diving well. We used a bobcat to put 36 tons of "57s" gravel in the pool but shoveling it from where it fell into an evenly spread layer over the diving well is going a whole lot slower than anticipated. Gee, imagine that!! Holes have been drilled for the rebar "mesh" that will be constructed over the gravel bed before the 4" of concrete is poured. The original single main drain has been teed and the two 2" pipes are sticking up well above the gravel bed. I've found a source for new anti-vortex drain covers but WHAT GOES UNDER THE COVER AND ATTACHES TO THE 2" DRAIN PIPES?? I don't know but I need to have this problem solved and in hand this week. The forming and pouring are subcontracted but we had to set the skimmers ourselves.

Between the main drains is a 1 1/2" pipe for the hydrostatic valve. We were able to re-use the old one, with addition of a new O ring. All these roughed in pipes have to be brought down to final level before the diving well concrete is poured.

Next will be electrical work (subcontracted) to move the electrical panel more than 10' from the edge of the pool and to run all new wiring inside the pump house, adding exhaust fans and individual kill switches for each pump.

We'll bring in a backhoe to dig good beds for the new pool plumbing, from the new skimmers all the way to the pumps. For some reason, the pump house roof was built to run off toward the pool so we're going to reverse the roof pitch, adding vents as well.

We met with a fence contractor today, as the old fence was only 4' high and won't meet any codes today. That could be a big number ($) as we're looking at around 500' of 5' high chain link with two 4' wide entry gates. We're also adding a 16' ramp for handicap accessability.

This will have to do for now, as I'm tired of thinking about the pool today. Will get some sleep and continue thinking about it tomorrow. I think about it nearly all the time. I hope I don't sound jaded because I'm really enjoying this project.

Hal

[waste]

Hal, the main drain pots should either have a sleve to glue a pipe into or a threaded sleve to put a male adaptor into (if it takes M/A -male adaptor, threaded - don't teflon the threads, GLUE them in, a leak in one of those would mean either abandoning the drain or jackhammering up the bottom to fix it). The anit-vortex is just a different cover for the unit (they're round). Have a level on hand when attaching the drains to the pipe so that you can be sure that they're level to the floor. Also remember to have the concrete guys leave the 1/4 - 1/2" for the plaster.I know you're getting it done this week, if you have more emergency questions that I can help with, pm me and I'll prioritize it - I don't get to come here every day at this time of year, but I'll make a point of at least checking my pm's, just in case you ned some info

[Sumo1]

Well, it's time for some updating. We've taken time off for some vacations so there's not been too much work on the pool lately. We did get the top wall of the pool and the coping poured about 3 weeks ago. It was blazing hot that day and the concrete set up a lot faster than we would've liked but, all in all, the result is looking good. A lot of work's yet to be done in smoothing and shaping skimmer throats but the skimmer boxes/foundations are extremely solid. We're about 1/3 into the project but I think the biggest part is done.

We have more 'crete to pour, in the form of some new decking. QUESTION OF THE DAY: In our next section of deck pour, we have to install about 70' of drain. I've found a local wholesale distributor who will sell us 10' sections of DrainRite for $30 each. Can anyone offer any tips, pointers or advice to help make sure this part goes in correctly? Thanks in advance. I'm all ears!
Hal