From member bwcadan:

We always take and set up two Sawyer water filtration systems. We drain the clean water into Sun Showers which always gives us more than enough water. If one should fail to work, the other is a backup. We use clean water for all uses including wash water and showers. We use water as clean as possible from the lake to keep the filters from clogging When we get home, I back flush before stowing for next year.

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We use a 12L filter, we don't grab from middle of lake, have to flush a few times on trip, but nothing serious. We also bring a collapsible 2 gallon jug, which makes filtering water extremely easy.

Rinse, rinse, rinse, dry for a week and store until next trip.