@sbank
A submersible pump may not be the best option, as you'll constantly be putting it in the tank and pulling it out which will get rather messy and probably become a hassle. Just my opinion, but the pump type that Rushton recommended above would be a better route, as you can plumb it outside the tank and let it sit, just turning it on between cleaning cycles when you want to filter the solution. I purchased the (similar) pump below, and it works perfectly -- plenty of power to get nice flow through the 1-micron filter. It's only been in use for around a month, so hard to predict how long it will last but so far no signs of any trouble.
https://www.amazon.com/gp/product/B01G305PK0/ref=oh_aui_detailpage_o01_s00?ie=UTF8&psc=1
A submersible pump may not be the best option, as you'll constantly be putting it in the tank and pulling it out which will get rather messy and probably become a hassle. Just my opinion, but the pump type that Rushton recommended above would be a better route, as you can plumb it outside the tank and let it sit, just turning it on between cleaning cycles when you want to filter the solution. I purchased the (similar) pump below, and it works perfectly -- plenty of power to get nice flow through the 1-micron filter. It's only been in use for around a month, so hard to predict how long it will last but so far no signs of any trouble.
https://www.amazon.com/gp/product/B01G305PK0/ref=oh_aui_detailpage_o01_s00?ie=UTF8&psc=1