Assertion: hot tub's filter | /r/HasProperty | cleaned
Facets:
Source sentences:
text: This is often the sign that the filters need to be cleaned or replaced.
text: If you have a filter that is clean, the water will be crystal clear.
text: The outer filter can be cleaned and reused several times and should have a lifespan of at least a year with proper care.
text: Filters and pumping systems should be cleaned and serviced on a regular basis.