[bvander66]

Have worked on many heads and found generally the cheaper heads need rebuilding more often. We live aboard for 8 years, ful time cruiser for 5 and have been very happy with Raritan products. Our phll is going on 12 years and only part we replace is jocker.
We find with constant use, raw water calcium build up forces us to replace jocker every 6 months.

 

[bvander66]

Two people full time in bahamian water (high salinity) means a lot of calcium build up which after about 6 months means the duckbill doesnt seal completely. Takes about 3 min to put in new jocker.