Ok. I can believe that.

But, having run pools like that many times, I can tell you you've got a high maintenance pool, with no good (ie, cheap) fix, and no easy solutions.

However, folks in situations like yours tend to get all hot for an easy solution . . . which makes them vulnerable to bogus sales pitches. So watch out: most quick and easy solutions aren't . . . and that's particularly true in situations like yours. I've seen $100,000's wasted because managers got sold a "quick and easy" solution. For what it's worth, the "solution" in your case is a new pool, or at least, a new circulation system -- and that's not quick, easy, or cheap.

Get a good vacuum -- separate pump unit if necessary -- and plan to use it!

In fact, it's possible to buy / build a separate pump system using a Hayward 3/4HP 120v SuperPump (http://www.hayward-pool.com/prd/_102...1_14002__I.htm) and an old Star-Clear filter ( http://www.hayward-pool.com/prd/_102...02_15516_I.htm ) and not only vacuum with it, but use it as a backup or supplemental filter. I've built them a couple of times.

** Do NOT use other pumps or filters. The Super Pump has the easiest open lid, with grit and dirt, of any pump made, and has a tremendous self-priming capability that more efficient pumps lack. The Star-Clear has old style separated pleat filter cartridges that can actually be cleaned after they get dirty. Also, be SURE you know how to wire it and protect it. Otherwise someone WILL get shocked. **

Try to get one on a 4-wheel cart, not 2-wheel hand-trucks. The ones on hand trucks fall over and get broken unless you weight the heck out of the bottom plate.

Ben / PoolDoc