09-23-2015, 12:44 AM
Your problem could be caused by the limitations of your catchment pump,its location or restrictions caused by your filters.
You could add a booster pump.
http://www.amazon.com/Leader-EBS-1000/dp/B00GMMJMTK/ref=sr_1_fkmr0_3?ie=UTF8&qid=1443019021&sr=8-3-fkmr0&keywords=Leader+EBS+800
You could add a booster pump.
http://www.amazon.com/Leader-EBS-1000/dp/B00GMMJMTK/ref=sr_1_fkmr0_3?ie=UTF8&qid=1443019021&sr=8-3-fkmr0&keywords=Leader+EBS+800