My ultrasonic fluid contains some things other than water, so I definitely want to get all that stuff off. After the US cleaning, I give each record a spin on my Keith Monks-style vacuum machine and do a three part rinse with MFSL Wash, MFSL rinse, followed by HPLC water, vacing between each step. After a cleaning session, I pump the fluid through a filter and into a gallon jug for storage.