Definitive Website for Specs, Parts & Diagrams?

Just wondering if any of you have a preferred resource for looking up diagrams, parts & specs online? Thanks in advance for any input or advice.

What kind of pumps? What do you intend to use them for?

Best bet is to call any of the PWRA vendors and ask questions. There’s a lot of great pumps out there that are useless for our trade.

It’s an AR Pump on my Landa 4.5GPM Belt-Drive. Since I do mostly painting, even though I’m licensed as a GC, I’ll be using the washer primarily for houses, decks, etc. I’ve looked through the diagrams on all of the Landa sites but I’m still looking for more info. I’ll probably just take it to a local Landa shop and get some clarification.

AR’s are iffy. Italian made. They don’t have the same reputation as a General pump.

It probably would not be overly difficult to replace that AR pump with a General pump.

You really think they’re iffy? I thought only the AR RSV was iffy.