T
tom walsh
I bought a 28' Hunter, 1989, several years ago. Each time I had the holding tank pumped, less came out. This year, I took all hoses off, back flushed through the air vent. "Water" came out the "in" but nothing came out the "exit" fittings until a tampon washed out. My marina person said that the tank probally has bellows & they are clogged. I have back washed MANY times. Any ideas?