I am having some difficulty locating these so if anyone could help me out it would be great. I am looking for flow charts on both the ViaAqua 2300 and ViaAqua 2600 pumps.
Most of these inexpensive pumps aren't going to have published performance data. I looked, but I couldn't find anything either. The most information I could find is:
ViaAqua 2300 -- 600GPH, Max. 6' of head
ViaAqua 2600 -- 740GPH, Max. 7' of head
Both have good flow, but little pressure. Most likely they're not going to be a good choice for pumping up to the top of a tall tank.