Is a ph meter required for distilled water

Distilled water how? If its with a Brita filter or jug. It doesn't change PH of tap water. If its bottled water. This is spring or natural water which holds tons of cal and other stuff giving it a natural high PH of 7+ Regardless of the waters PH. its the nutrients that change the ph. For instance my tap is 6.7 in summer and 6.8 in winter. And my summer water has 10more ppm. I think this is something got to do with the difference in temp. I've no idea how my water company does it. Anyways, my point is. I've perfect soil ph water (as that's what I mostly use) but its the nutrients that change every type of water. RO, TAP DISTILLED, ph is ph pal.. Hope that answers ur Q So yes..a ph as an EC meter is an essential piece of kit when using solution nutrients. Organic nutrients you don't need 2 PH..but not all nutrients in your line might not be natural like silica. Or if your mag is off. That needs to be PH'ed regardless of its origins. You can add dolomite lime, and powder nutrients from GREEN HOUSE FEEDIN or use their alga line. But if u go the organic way. Be sure no to use any Mineral nutrient that needs to be ph'ed in the same feed window. Thats the only way you'll get caught out, if even you do. Xpert nutrients have an amazing mineral/organic line. They have every thing in master grow part A+B have a look at my diary. These need ph'in so the enzyme lowers PH and silica highers it. Generally the PH is between 6.1-6.3 then you add enzyme or silica to lower/higher ph naturally with nutrients. Or they have PH up & down for coco and stuff. Wit soil you can use them 2 instead. Milwaukee ph55/ph51 EC60 dual kit. 100$ bucks if u look around. Have mine 2 yrs. Wit any diode you need to also buy a storage solution (most ph makers have this in small print but anything wit a diode needs a storage buffer which is 15$ for 250ml..