I use The Pool Boys every time I have a problem. They guys know what they are doing and usually get to me the same day. Always a great attitude and will answer any questions you have. Kept getting DE back in the pool. The guys showed me a small crack in the inside filter water manifold causing the DE to get back in the pool. They had a spare manifold on their truck and replaced it. Buttoned up the filter added the DE back to filter and problem solved. I recommend this company for all your pool needs.