I have had my Dc6000 for close to 2 years now. it ran at 100% in a closed loop for 9 months and now at about 60% for 18 months. it started to get loud so I cleaned it and since then the tank is super silent. I love this pump and it has worked extremely well for me.
as for longevity, still out in the weeds so to speak so I dont know how long it will last. I just replaced a pair of 3 year old WP40s after one failed. the other is now a mixing pump
as for longevity, still out in the weeds so to speak so I dont know how long it will last. I just replaced a pair of 3 year old WP40s after one failed. the other is now a mixing pump



