Methods and apparatuses for filtering water

A method of recycling wash solution from a power washer comprising;

• filtering wash solution through a first filter assembly having a first filter sheet under ambient pressure to form a first filtered wash solution and allowing the first filtered wash solution to flow into a second filter assembly;
• filtering the first filtered wash solution through the second filter assembly having a second filter sheet of 10 micron or less filtration size under ambient pressure to form a recycled wash solution and allowing the recycled wash solution to drop a second distance into a recycled wash solution tank before contacting a surface of the recycled wash solution being contained in the recycled wash solution tank, the second distance being sufficient to aerate the recycled wash solution in the recycled wash solution tank;
• supplying the recycled wash solution to a power washer;
• washing an object with the recycled wash solution;
• collecting wash solution from the washing step;
• and
• supplying at least a portion of the collected wash solution to the first filter assembly for recycling.