So I have a coleman pool I've had about 3 years now and I finally broke down and purchased a sand filter pump for it. The problem is I don't know nothing about this thing directions are very vague in how much sand are what attachments are needed I've gathered that my two little hoses will work but what about the big hose that puts the water back into the pool? I purchased this pump from Amazon XtremepowerUS 75110 Pool Sand Filter 13" W/Pump 3/4HP ABOVEGROUND, Blue so any help would be very much appreciated