I installed the PUR 80 about 6 months ago and had consistant problem with the dedicated 15 Amp circuit breaker tripping off. Contacted the mfr. who advised installing a 20 Amp breaker due to the pump surge resulting in the amperage reaching 17 amps during the cycle. The instruction manual specifies using a 15 amp breaker/fuse?? It has been fine since the 20 amp breaker was installed.
Also installed an additional filter housing with a charcoal filter - just before the filter supplied with the kit by the PUR mfr. I believe that the charcoal filter improved the water
quality/taste although it seemed just fine prior to adding this 2nd filter. Placement of the brine discharge line relative to the incoming water supply - be certain to place the brine line discharge as far aft of the incoming water supply as possible otherwise the incoming water and resulting product water will be significantly high
content. This may seem intuitively obvious but 2 other cruisers in our group complained of "less than great water" and we found that they hadn't placed the incoming and discharge lines as outlined above.