D e pool filter

Check this link out. Cloudy Pool Water Swimming Pool Care Instructions Maintenance Reasons

The pool filter and pump are critical pieces of equipment in maintaining good water chemistry and keeping the pool water clean. The pump is the most critical piece because it moves water from the pool through the filter and back to the pool.http://www.aurorapoolsandspas.com/

make sure you are not using the maintain mode

Here is the site for all Hayward Manuals.

http://www.hayward-pool.com/webapp/wcs/stores/servlet/ProductInfo_10201_10551_14502_-1___I#FiltersSand

Actually, a pool really does not require you to up size the motor. Most pools should be plumbed with a 3/4 HP or 1 HP pool pump (though my preference is a variable speed).
A good rule of thumb for simple understanding is that you can OVER PUMP a filter, but you cannot OVER FILTER a pump. So having a larger filter is not a problem. As long as the pool is turning over 1 - 1.5 times during a run cycle, your existing pump will be just fine.
Here is something else to think about; having a larger filter and still maintaining the smaller pump from your previous filter allows the water MORE TIME to filtrate in your filter. The pressure on the filter will be reduced, causing less stress to the components of the pool system, and the water will come out cleaner, taking advantage of the filtration area of your filter.
Also, if you try to up or down size a pump without changing out the impeller or some of the more critical operating components, you would not see a major difference in performance. Also, you could cause damage to the existing pump.

You have about 8588 gallons of water in your pool ... One inch of water contains about 159 gallons in your pool. You should consider a 6 hour turn over rate. I recommend a high rate sand filter with at a minimum 1.5 sq feet of filter area. You need to move about 24 gallons a minute to achieve the 6 hour turn over rate.

Continue your research with these figures at hand.

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You will need a test kit to maintain the levels correctly. But I just filled a 16ft round (5000 gals) and use 6ea 1 inch hth tablets every 2 days

First of all to answer your question. Yes the intex generator will work with a 16x36
Where do you get an average of 5.5ft when you say the pool is 36" deep
Well now the bad news. A salt water system will not solve your algae problems
Algae comes from wrong pool maintainence
You must now with a green pool shock your pool with 1 gallon of chlorine and now with a pool brush brush the sides and bottom now wait 4 hours for things to settle.
now vaccum clean cartridge if applicable or back flush your sand filter
wait 24 hours and brush again.
Continue to do this until it starts to clear watch your chlorine level and if it starts to get low shock again until the green goes away.
You will also need to buy an algacide, non foaming and follow the directions usually 14-24 ounces per 10,000 gallons of water
also put a stabilizer in your pool to help maintain your chlorine level. It will still drop but not as fast
one of the main contributing factors to a green pool or lack of sanitizer ( chlorine ) is # of bathers,sun,heat,sun
tan oils, and even the most common problem Lack of use.
The water needs to be constantly moving to help prevent algae. If you do not use it for a few days or so then brush it even if you do not see algae Guarantee if you go in the pool a few days later after not using it for a bit you would feel the slipperyness HMMMMMM is that a word anyway you would feel it

Another thing to consider is to filter filter filter
unless you have a 4000 gl ph pump you can not get enough filtering with an intex pump.

a pool should be turned over at least 3 times a day this means if you have lets say a 5000gallon pool and a 2000 gl ph filter you will need to filter at least 7.5 hours and that is at the low end
An intex pump pulls about as much energy as a 40 watt light bulb I have aintex 2500gl ph pump with a 7000gl pool I run my filter 24/7

Bottom line is you do not need a salt system that is just one more so to speak chemical to maintain at a certain level

Stick with getting your chemicals right and your problems will go away if you have any more questions or something specific just e-mail me

you will have to replace the brain unit its shorted out