DL, I'm running 2, 5000 gal submersibles to supply a stream 120 ft. long with about 15 ft. of head lift. I usually only run one at a time to reduce cost, but can run both for a strong flow when desired.This flexability is great to have and difficult to add later.At the very least,run a second supply flex-line for another pump so it's easy to add on.Suction lift is a whole different game.You can push water a long way, but suction lift is a huge drain on efficiency. Like Cecil said, your pump supplier can give you info on head/friction loss. My suggestion would be talk to the folks that actually INSTALL this type of feature,not just sell pumps.They can teach you alot if you want to do it yourself like I did.Even if you have to pay them to look at your site,and make suggestions,its well worth the money. Running costs are about 50.00 per mo. per pump. If it's installed properly is pretty much trouble free and you'll love it.Not installed properly, it will be an expensive pain in the #@%$. Mine runs 24/7.
