Hi Fred, I just pour some of Starbrite's cleaner in my sump. Works well. I tend to mostly use Starbrite stuff for cleaning these days. I found that their products typically perform much better than brand X and are often cheaper. It's on sale 40% off at West right now.
https://www.westmarine.com/buy/star-brite--seasafe-bilge-cleaner--186181?recordNum=5 Good luck with the cleaning! -Francois Rivard 1990 34+ "Take Five" Lake Lanier, GA
_______________________________________________ Thanks everyone for supporting this list with your contributions. Each and every one is greatly appreciated. If you want to support the list - use PayPal to send contribution -- https://www.paypal.me/stumurray