I'm looking to add a Hayward wall filter to my 18' pool. I have an Intex sand filter pump, so I think it's strong enough for what I want to do. Is there anyway to keep the stock intake working with the wall filter? It would be nice to have more intake under the water, as well as with the skimmer. Would I have to make some sort of T adapter to use both? Just looking for some ideas. Thanks.