Flushing cooling system using dishwasher tablets
How about front loading cloths washer tabs. Very low sudsing.
Funny dishwasher story from my past....
I worked in Facility Operations at a office building.
The executive suite has a dish washer
One of the cleaning crew filled it with HAND WASH soap.
10 or so minutes later I get a call that there is suds all over the floor.
I go up get a 1/2 cup of vegetable oil and dump it I to the dish washer.
Couple minutes later no more suds coming out of the machine!