Since this is my first post a little about myself, This summer will be my 3rd season with an inground fiberglass 14x30 pool and inground fiberglass 8 person spa. I run ozone and cholorine in the pool and ozone and bromine in the spa. Have learned a lot over the past 2 seasons and keep reading more and more and learning more and more, anyway on to my issue.
I have from the start never been happy with the flow of water/ Jet pressure on my spa. The guys who installed it where pool guys and did not know alot about spas. Anyway I have since then replaced the standard 1hp pool pump they put on the spa with a 4hp 2 speed pump. Alas my spa got pressure that was acceptable to me, however I had an issue over this winter my pipes froze, luckily I caught it in time before any major issues, however I did loose my filter housing. I have replaced with a smaller filter, was 120 now 50. Now I am beginning to wonder if I made a mistake. With the new filter in the flow on high speed feels like a circ. pump and low speed just barely moves the water. If I remove the filter cartiage it flows great. But I am boogled because the filter has a built in spring loaded bypass, so I would assume if my flow of my pump is more then the filter can handle it bypasses the cartiage and should not block my flow like it does. I guess I am looking for suggestions, I have 2 thoughts right now, a new larger filter with higher flow rate, (not sure what current one is rated for Waterway 50 ft2) or put a manual bypass around the filter to bypass it when I use the spa. Any thoughts or suggestions are welcomed. And thanks in advance.