Hi, my husband and I are renovating our concrete/gunite pool. The pool was built in 1970 and needs some work. The previous owner concreted the main drain (apparently easier than repairing the leak), so we will have to go without it. My question is this: currently, the pool only has 2 return inlets, which are both in the shallow end. Since, we do not have a main drain, I think we need to add more inlets, but I am not sure how many an where they should be located. The pool is kidney shaped and about 27,000 gallons. We will have one skimmer. Can anyone help me with this? Thank you