I use RedSea Pro kit and Hanna DKH, to test my water parameters. My alk testing has some discrepancies between the two. I test minutes in between the two kits RedSea gives me a result of 7.0dkh and Hanna gives me 7.5dkh. Would you go with one or the other or average the two for a dkh of 7.25? I know that RedSea has an accuracy of ±0.025 ppm and Hanna ±0.3 dKH ±5% of reading. What are your thoughts?