adjust your effluent, and also adjust the water by doing a water change with buffer that will lower the alk. DONT LOWER IT TOO FAST, THE DROP CAN SLAP LIVESTOCK UPSIDE THEIR HEAD giving them whiplash and sending them into post stress, that sometimes wont show for a while.

When you do water topoff of RO use a reliable RO source and also prime and buff the water in accordance to the amount added. BUFF and PRIME will shock the system to the least