Cleanworks nailed by saying Russ nailed it, you're looking for a PTO machine. Just sayin cause you don't like working on or fussing with a slide-in and that's ok; really ok. But give some serious thought to the purchase AND service.
Butler?, well maybe so let's get back to that one.
The most pragmatic choice would be the
Hydramaster and Cleanco (hopefully you have a local and strong distributor for either )mentioned above and not necessarily in that order. It's just fair to mention that Cleanco being the pioneer PTO, is still ranked nationally and up in Canada (duh) right up at the top with reliability (with Hydra &
Butler) is just fair to mention. But the most pragmatic element is where are you gonna spend yer money and just who is going to support you when sh.. hits the fan and/or the machine ages? You don't like tinkering with slide-ins so a PTO is knocking at your checkbook.
Butler?, well I used to think ya that's a cool well built machine. Arrives via a train or truck/transport system and you drive it away, cool. Then it breaks or has quirks, hum. I'm supposed to take it to any qualified mechanic for warranty and general maintenance? Or better yet to my local distributor who has absolutely no incentive to put their heart into the repairs/maintenance? hum