Please follow the instructions below to install The Sea-Flush System to your marine engine.
Find and remove all drain cocks. The pictures below are some samples of drain cocks.
Note: It will be easier to store the pump and hoses if the hose is not pushed tight on the pump fittings so they can be easily removed for storage
Because the engine and components will be empty from installing the fittings, you will have to put the drain hose from the pump into some clean water. The valve handle must be horizontal to the pump body to work. Connect the female quick coupling to any male quick coupling. Turn the valve on the pump to the direction you want the water to flow and pump slowly. Check for leaks. Check each male coupling. Try to have your work inspected by a marine mechanic.
Draining the Bilge
To drain the bilge of your boat you will have to mount another male coupler, filter and hose that will go to the bottom of the boat. The end of the hose should be cut at a twenty-five degree (25º) angle and put in the lowest part of the bilge. The hose can be held in position by clamps or glue (silicone works well).
Instructions for use
When using the Sea-Flush System for the first time, you should practice on your engine two or three times just to get the feel of the system. After installation of the fittings, filter and the mounting of the quick connect valves, just put the female quick connector onto any one of the fittings. (The engine should be drained from installing the fittings). Put the other hose into fresh water. Make sure that the valve on the pump is pointing to the direction you want the flow to go.
NOTE: the pump will not pump if is not attached to a fitting – this is because the female fitting is made not to leak when not being used.
Start pumping – you should feel pressure on the pump handle as the fresh water is being pumped into the engine. Pump slowly. Pump about nine or ten times. Repeat this for each fitting. Now reverse the pump valve – and remove the water that you have just pumped into the engine. You will feel when the engine cavity is empty when the pump is pumping air.
After a few practice fills and empty cycles, start the engine and run for about 2 to 3 minutes. Make sure that the boat is in the water. This will fill the engine with sea water. Stop engine. Now use the Sea-Flush System to drain each cavity of the engine and count the number of strokes to empty each engine cavity. This is the number of strokes you would use to install fresh water (or salt neutralizers) into the engine. Mark the number of strokes with a maker at each male quick connect fitting. EG: if the right side of the engine block take 10 strokes to empty – then you would put 10 strokes of fresh water back in when flushing.
Remember that when draining just the engine block that you will take more sea water out of one side compared to the other side, this is natural, the sea water inside the engine is just being lowered from the head cavities to the block cavity, the block cavities are separate and the head cavities are joined. When you fill the engine back up with fresh water, you will have to pump more fresh water into one side of the engine block to fill the head cavities.
This is why you mark the number of strokes at each male fitting, this will replace all sea water with fresh water. You can not put too much fresh water back into the engine – it will just run out the exhaust. The manifolds and cooler will only take a few strokes each to drain. Hot water tanks will hold about a gallon (4.5 liters) of sea water. Mufflers hold very little sea water.
Now you are ready for the fastest and easiest way to flush an engine. No more crawling around the engine compartment. Now you can do the engines by yourself.