Record Cleaning Machine - Loricraft PRC-3 vs. 4?

Thanks for all the helpful responses.
Both the PRC-3 and PRC-4 look like very good options, and it is not a question of one being inferior to the other, but rather if one really offers any significant advantages in practice?
It sounds like other steps in the cleaning process are equally important considerations, and unrelated to a particular Loricraft model choice.
I am sure that most users would be happy with either one.

The Loricraft "Upgrades" ( ---> Price) are mainly in finish, Dust cover and power of the pump. All of them do the job but normally you will keep the unit for a long time, so it makes sense to invest in the more powerful model. The pump is simply better quality. PRC3 was available 2003 (or earlier?).

I have the PRC-3. When I was talking to the US importer at the time (Smart) he told me that the motors are all high quality medical grade European and will all have very long life. These motors run cool, only difference is amount of vacuum.

i had the PRC-3 and now have the PRC-4 Dlx. in between i purchased an Audio Desk Systeme RCM which is automatic. i puchased the PRC-4 Dlx because the Audio Desk machine does not handle thin pressings very well and also does not do as good a job in some ways as the Loricraft. it's nice to have both.

with the more powerful pump, the '4' is faster, quieter, and does reverse directions which does that little bit more cleaning.

also the 'dlx' has the plastic dust cover i like, and an arm rest which sounds like no big deal but i do like it.

the faster cleaning because of the more powerful pump makes me want to clean Lp's more often. which is good.

Mike, I also have a PRC-4 Deluxe. I like it for all the reasons you mention, though I never use the reverse switch as I find putting the wand on the other side of the label accomplishes the same thing. My final pure water rinse for example is done with the wand starting at the outer groove (as you would playing an LP) traveling to the label and then from the label to the outer groove on the other side which achieves two things: a double dry cycle, one in each direction.

Could you explain how the more powerful pump works faster? I always thought the speed was the same (roughly 72 rpm) for all the models.