I make my durso's very high. So high that there is no noise from water falling into the overflow. Do not drill one large hole in the cap. Drill 8 to 10 small holes instead. About the size of a toothpick is good. Drill until the water doesn't pull down in the overflow. Then drill a couple more. Since the holes are so small they will get salt creep in them you will have to clean every 3 to 6 months. I use an ro wet toothpick to dissolve it.
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.