“Marelon” seacocks and Zebra mussels?
There seems to be a problem with many "Marelon" plastic type seacock valves being stuck in the (usually) open position. This may be the result of Zebra mussels in the…
There seems to be a problem with many "Marelon" plastic type seacock valves being stuck in the (usually) open position. This may be the result of Zebra mussels in the…