Well last night was a night of ups and downs. So to start with I've never used an external pump before, so I'm still sort of figuring this out. Basic idea is the same but there are additional things to consider I'm discovering.
So my new Hammerhead arrived yesterday, it is one beautiful pump if I'm being honest. Never thought I'd say that about a pump, but it surprised me lol. Honestly it has me considering replacing my third pump with a new one instead of the used one I have.
I got everything hooked up and then proceeded to run into some issues. I had a leak out of the output side of the pump, it was dripping pretty good. I also found out disconnecting the pump there still tends to be a lot of water in the pipes when they are 2". So my basement got a bit wet last night. At one point I plugged the pump in and it just hummed but didn't move water, so I was worried it jammed up. I opened it up, found nothing so I put it back together and it ran fine again. So not sure if plugging it in too often triggered a safety thing on it or what. Either way it is running fine now.
Next issue the overflows are not moving water quick enough, the water line in the tank gets very high. I'm going to cut the teeth out of the overflows and use the mesh instead, it should flow a whole lot more water. The last and biggest issue, after looking at the 150 upstairs for a few mins I go down to the basement and check things, the sump on the right where the pump is pulling from is nearly out of water, the sump on the left where the water is returned to is nearly overflowing at this point. Turns out that a 1.5" pipe doesn't flow enough water to balance the two out when a pump is moving 6000 GPH between them. So I've ordered a couple 2" bulkheads. Guess I'll be drilling out a couple new holes and seeing if a 2" pipe between the two will be enough. Fingers crossed that it is.