Purchased for Colloidal Silica
Your review: Received this pump for a 55 gal drum of colloidal silica. Just began using it. We upgraded from a standard diaphragm pump that did not have the ability to reverse flow. This pump is great in both directions allowing us to get all samples we might need. We will update the review in a few months.
Pros: Easy to put together. Comes with pipe tape. Easy to see flow turn sign on side of diaphragm.
Cons: No extra screws just in case. Aluminum parts not powder coated.