Hello, I am new to this forum. I bought my 40 legacy 1985 last year and have been working on it ever since. There is the normal automatic bildge pump. Also there is a manual uptake in the bildge and the pipe goes under the kitchen sink where a whale bildge pump was installed(nothing there now) and the out going pipe out the hull. The whale pump was installed so the handle was facing the back seat of the dining area. There is a 3 1/2 inch cutout for the handle part and the rest mounts under the sink. Can anyone please tell me exactly what brand and model whale plump I should install ? Many thanks,Tank