What do you use for an ATO Pump?

[philg3]

My Tom's Aqualifter has been struggling lately. I took it apart and cleaned it, but it still struggles to get more than a drip up 2 feet of head. Lately it's been failing completely and I have to smack it a couple of times to get it started.

I'm using a Innovative Marine Titanium Hydrofill ATO Controller and it works pretty flawlessly, and it can power pretty much any pump on the market.

I was looking at a peristaltic pump so i can start dosing Kalk, but a standalone can cost $120-150. I could buy a Jebao 4 head doser for that much. The Neptune PMUP-T is cool, but i wasn't sure about using it with Kalk since it draws water from the bottom of the container.

So my quesitons is - What pump do you guys use for your auto top off? Any recommendations? Should i just buy a new Aqualifter for $20?

Also, has anyone used one of these?
https://www.amazon.ca/Adjustable-Dos...ds=Dosing+Pump

It's tempting but the reviews are terrible.

Thanks in advance for any advice.

-Phil