I have an Intex Ultra Frame AGP 15'48". We put up last summer. Winter cover blew off in Spring storm and dumped leaves in pool. We first fought the disintegrated leaves in pool...water clear but couldn't get bottom clean. Then we had an algae problem. Now, water is blue but no longer clear. Cannot see bottom. Have shocked. Vacuum daily. Change filter two times a day. Filter has yellowish gunk on it when we take out. Have a filter pump that came with pool. We have used swamp to swim, super shock, liquid shock. Had water tested and they told us we needed PH minus and that chlorine level way too high. Added the PH minus yesterday. Should we drain the pool and start over??