pool return question
when my pumps are running, I notice that water coming out of 3 of my returns have good pressure, but the 4th, on the far side of the pool, is almost nil, nada, none. But if I plug the other 3, which requires a couple of kids helping, I can increase the pressure a little bit.
The problem lies with heating the pool with solar. If all 4 were working with good pressure, the pool would heat faster. Is this a pump problem? Do I need a more powerful pump? Thoughts???