Pool installation errors

Here is the perfect reason why you shouldn’t entrust the construction of your pool to any old builder who says he can do it. This customer has paid for an automatic PH controller and dosing pump but unfortunately the pool company attached the feed and sensor to the waste pipe!!!! Any PH- liquid would have been pumped straight down the drain and the sensor would have been ruined almost straight away as it needs to be kept wet and would have quickly dried out as the waste tube isn’t used very often.