I recently acquired a 2005 C-310. Learning about the systems is interesting given the inaccuracies in the Catalina owners manual. I spent the day trying to trace hoses in the Fresh / Gray / Black Water System.
It appears the shower / refrigerator sump pump dump line goes to the seacock for the head seawater intake line. This is the way it is set up on my boat:
The seawater head intake seacock is located behind a small door to the stern of the head. Open the seacock, pump the head and water is drawn in. In the picture the macerator is on the left and the head intake seacock is on the right. Under the head sink is a Y valve. Turn it one way and the refrigerator drains. Turn it the other and the shower sump drains. Both feed a pump, whose output is connected to the head intake seacock.
Questions:
1. Why didn’t Catalina just connect the output of the sump pump to the head sink drain seacock? It is located directly under the sink!!!
2. The head intake seacock is below the water line, meaning there is water pressure as soon as it is opened. Given the sump pump also puts pressure on the line, what prevents the water from forcing its way into the head pump intake?
On another subject: Where is the seacock for the air conditioning inlet water???
It appears the shower / refrigerator sump pump dump line goes to the seacock for the head seawater intake line. This is the way it is set up on my boat:
The seawater head intake seacock is located behind a small door to the stern of the head. Open the seacock, pump the head and water is drawn in. In the picture the macerator is on the left and the head intake seacock is on the right. Under the head sink is a Y valve. Turn it one way and the refrigerator drains. Turn it the other and the shower sump drains. Both feed a pump, whose output is connected to the head intake seacock.
Questions:
1. Why didn’t Catalina just connect the output of the sump pump to the head sink drain seacock? It is located directly under the sink!!!
2. The head intake seacock is below the water line, meaning there is water pressure as soon as it is opened. Given the sump pump also puts pressure on the line, what prevents the water from forcing its way into the head pump intake?
On another subject: Where is the seacock for the air conditioning inlet water???
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