<span style="color: black"><span style="font-family: Verdana">I've dosed Kalk with an ATO (aqua lifter) into my sump for over a year. I’ve had no problems with the ATO pump but I’ve had tons on scale on my skimmer, return pump and just about everything in the sump. Without frequent cleaning the buildup would cause equipment to stop working. When I drip into a high flow area in tank I have no problems. </span></span>
<span style="color: black"><span style="font-family: Verdana">-Nick</span></span>
<span style="color: black"><span style="font-family: Verdana">-Nick</span></span>