If the Form 990-T is filed on or before the due date of the return, the SOL begins. to run on the due date of the return, which is on or before the 15th day of the. fourth month following the close of the taxable year of the trust, which for a. qualified plan is the plan year.
Phosphate is a vital plant nutrient and the presence in swimming pool water, even at low concentrations, can cause accelerated algae growth in poorly maintained pools. Pools, that are properly maintained, usually do not have unexpected difficulty controlling algae, even in the presence of phosphates.
I cannot get a free chlorine level, and have found high phosphates in my pool. I have used about 3 phosphate treatments. in different strengths, over the last 2 weeks, and still have a high Phosphate level. I have read up enough on the issue, but part of the problem is that I only can currently test to 1,000 PPB.