Audio Desk Ultrasonic Record Cleaner Onwers?

I am going with the 100 interval for changing the fluid and the rollers and the filter. I figure if they figure 150 is the normal interval, Then I am just assuming that the last third of the life of the rollers in the fluid would have fairly dirty water and rollers. In relation of the cost of the machine versus my record collection it’s a small investment change every hundred. As far as the draining I have to agree it wasn’t a very well thought out design, so I have discovered that three-quarter inch PVC pipe fittings work. I have a couple of the fittings but haven’t come up with a suitable valve yet.What I do in the meantime is turn on the machine and let it run one cycle without a record to keep things lubricated, wet and mixed up look for longer periods I drain it into canister. Otherwise I am very happy with the machine and convenience vs the VPI 16.5 I used for years.

How often you change the fluid will depend on how dirty the records are to begin with. My record collection is in already excellent condition, since I have used a vacuum cleaning machine since the 80's. Even so, I change the fluid every 50 records. I cannot imagine cleaning a record in dirty fluid, then allowing the machine to air dry all that crap back onto the record. I do not use the drying cycle for that reason; instead I shut the machine off once the cavitation is finished, then rinse the record in a Spin Clean, then dry with a vacuum machine. A lot of work but my method leaves zero residue on the record when finished. Yes, I'm crazy like that :-)

@theo : "In relation of the cost of the machine versus my record collection it’s a small investment change every hundred"

Agreed. I was testing the waters so to speak. Now that I know how dirty it gets with 150, I will do 100 and change fluid and inspect how the rollers and filters look.

@seasoned "I do not use the drying cycle for that reason; instead I shut the machine off once the cavitation is finished, then rinse the record in a Spin Clean, then dry with a vacuum machine"

Very interesting and it makes total sense to me. I will have to try your method for sure!