I use it all the time, and it is not a problem for me with the fittings or the pump.
I did have to change the Meter recently, so maybe it affected it.
However, that is a small price to pay for a really good product that cleans quite well.
I also like 'Redline' as a pre-spray, it works very well and is also good for fifth generation carpet.
And what's his name (the owner,I just forgot his name) is a real class act.
Call me, if you wish, an old stubborn O/O. However, I like supporting smaller companies that are not built from the get go to be sold to a large corporation. Claiming constantly, as they go, that they are the original mavericks.