The typhoon utilizes two Cat 3545 pumps. Each pump uses 45 GPM. 90 GPM when both pumps are running. Both pumps only run on a HP rinse pass which takes no longer than 10-15sec roughly. My top wash has three HP rinse passes (first HP rinse, HP rinse after TF, and HP/CC Rinse). A single pump will run for entrance underbody (if applicable), rocker panel pass, and stationary underbody which are only used once during a wash cycle. A separate booster pump is used to deliver all the chemicals and SFR.
A Typhoon can only do 40 cars a hour if they are mostly basic washes. Expect about 30 cph as a more realistic number and not a oasis promo video.
My biggest dislike about the Petit is not that its slower. The problem depends on where your located since they have no heated system for the machine in cold climates. The answer Petit gave me a few years ago after a inquiry was put
doors up. Any car wash owner that runs a wash in a cold climate understands that
doors fail and its ridiculous to rely on them to keep your wash open. Whether its a issue with the
doors, ice on the tracks, or a customer running into it. It happens and most likely on your busiest days. Imagine spending over 250K and have to close your wash down for a week or two during your busy season because someone ran into a
door. Now your waiting on parts to get back up and running. Even a simple photo eye failure which will cause your
door to stay open will result in the wash freezing within ten minutes. You don't have to worry about that with a typhoon. It has whats called a rail heat system and air purge. All rails, wands, igus', and bridge boxes are heated and water is purged out the wands. The wash will run with out
doors but I don't suggest it. I did that for a few years. You will get tons of ice build up on walls. I would never run a IBA in a cold weather climate state without
doors again UNLESS YOU HAVE TO. I have rail heat system,
doors, and bay heaters. The more insurance the better. If a
door fails I simply leave it up and wait for my parts. No down time.