Instruction: Analyze a question and its supporting document. Predicting answerability based on the information provided in the document. Output yes if the document contains relevant information to answer the question, otherwise output no.

Input:
Question: what model 1.5 hp pump is this specifically? Is it the 2 speed pump?
Document: Very powerful pump. I have a 15 by 30 pool with one skimmer and one return. For the one hp motor I would recomend 2 skimmers and returns because this is more powerful than my previous 1.5 hp pump!Great by. Get extra d.e if you have a serious alge problem or are opening up your pool.
Spring came and set up pump and filter - had to reset fittings for my pool, but again, no big deal. Started it up and it ran like I just bought a new filter. In fact, the pump was an extra 1/2 horsepower stronger than my original, which probably made up for keeping the pool cleaner. Very, very happy with filter and pump. Thank You so much to all who made it available to me.
*** EXTRA PARTS/ ACCESSORIES *** Purchasing two additional threaded 1.5" PVC ball valves and a few misc plumbing parts to connect your hoses(purchased from local plumbing store at a much cheaper price than equivalent parts avl online) helps tremendously when backwashing/ servicing the filter. You may also want to get a DE scoop (I picked one up at local pool store for abt $5 - also much cheaper than the DE scoops advertised online).
When I purchased my above ground pool (27' diameter round 4' deep) a cartridge type filter was included. The cartridge was difficult to clean and needed replacement once or twice a year at a cost of $100 per replacement. The pool water always looked decent but never super clean. I purchased and installed the Hayward EC50C93S Perflex 1-1/2-Horsepower Extended-Cycle D.E. Filter Pool System. Within three days my pool water looks like what you would see on a commercial.
Great pool filter. Our pool is cleaner after six hours with this filter than a week with our old sand filter. It's easy to hook up and there is no hose to break between the pump and tank (solid pvc pipe). Also, you don't have to backwash it either thus saving pool water. And no more lugging bags of sand. Wish we would have bought it years ago.
After 13 years I replaced my old sand filter and pump.I have a mesh winter cover that allows water and dirt though while leaving leaves and things like that out. When I open my pool in the Spring I would need to run the old pump and filter for 3 days with a backwash every 12 hours.
I could not get rid of the cloudy water in my pool when starting up this year. I ran my Entex cartridge filter for 3 days to no avail. I installed this filter and pump, ran for 4 hours, and now the water is crystal clear. It was a little overwhelming due to the size but it is very effective. I considered a sand filter but it was not much of a price difference.
!!!!!!!ATTENTION!!!!! !NOT FOR INGROUND POOLS!!!!!!!! !I ordered this for my inground pool. Nowhere in the Amazon description does it state this, so it went for an expensive ride to my address and back to Amazon.Amazon gave me full credit!Will not work for this application as the pump is gravity fed and can't draw enough suction to operate a inground system.I only gave three stars because of this.
I would then need to add water from my well which is high in minerals that leach out of suspension when mixed with chlorine forcing me to add more chemicals for the minerals to be reabsorbed this would then require me to keep running the pump to mix the chemicals.This has been a warm summer with little rain in New England. I've only needed to add water once, never lost any to backwashing and only vac'd a handful of times.
So here's a quickie review. The pump works as advertised. D.E. is an interesting material after having been a long-time "sand guy". However, the media is very efficient. Beware that it will clog if you filter a heavy growth of algae... You just have to flush it and restart, but it took a green pool to clear in 14 hours! The bump mechanism is easy to use and works as advertised. Easy to pull the filter bladder to clean.
Answer: yes