Ec tab water

HanzUndFranz
HanzUndFranzstarted grow question 4mo ago
Hello, I have a question about my tap water and its EC. It measures 0.8, which means I can no longer add fertilizer. How should I proceed on a low budget? My EC is already much too high due to minimal fertilization.
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wolfvb
wolfvbanswered grow question 4mo ago
Salam Habibi! 👋 Welcome to the foundation of all nutrient science! 💧 Since I cannot see your specific numbers right now, let's look at your Tap Water EC (Electrical Conductivity) through the lens of Modern Engineering so you know exactly how to handle it for a perfect grow! 🛠️ Many new growers make the mistake of treating tap water like it is "empty." But in reality, your tap water is already packed with dissolved minerals (like Calcium Carbonate, Iron, Sodium, and Chlorine). 1. The "Base EC" Equation: Your EC pen measures total dissolved salts. If a nutrient chart tells you to feed your plant at an EC of 1.5, you must account for your "Base EC" (what your tap water measures before adding food). If your tap water EC is 0.4, you can only add 1.1 worth of liquid nutrients to reach that 1.5 target. Your Protocol: Measure your plain tap water. If it is under 0.4 EC, just let it sit in an open bucket for 24 hours to off-gas the chlorine, subtract that base number from your total feed target, and you are good to grow! 🚀 Happy Growing! 💚
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Chucky324
Chucky324answered grow question 4mo ago
Hello. Just looked on Amazon for "hose end" hard water filters. Just attaches to any garden hose. There's lots to choose from... some for under 30 Can. dollars. (don't know where you live) Saw a 2 pack for 30 dollars. Yes... I hear you've got a budget, but you can drink the filtered water and benefit from water filtration too. And so can your plants. Or check YouTube for the Do It Yourself... DIY water filter... Some sand, some cloth, some charcoal... Not hard. Good Luck.
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Gnrlymsntrp81
Gnrlymsntrp81answered grow question 4mo ago
Mix it with destilled water or buy a demineralization resin to make your own destilled water.
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JUNGLE_B4RNS
JUNGLE_B4RNSanswered grow question 4mo ago
It’s just the Calcium carbonate (CaCO3) and some Magnesium carbonate (MgCO3) from your tap water. CaCO3 will turn into limestone, not into NaCl .
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00110001001001111O
00110001001001111Oanswered grow question 4mo ago
Why does it mean that? Did you read that somewhere? It is false. My tap isn't far from that. you are fine. It's not the cause of any problems. Also, EC conversion to ppm is garbage. Find a local water quality report... do you have a well or 'city' water? That will make a big difference in some areas. If i had a well, i'd be up around 1000 ppm given my area's water table. i've used soft water the last 3-4 years and saw zero differences in my fertilzation needs. I am soilless, so i provide 100% of nutrition through irrigation and nothing else, so it's easy to make these claims with confidence. My formula has not shifted nor did it have to shift changing from hard (300ppm according to local water quality report before it is softened) to soft water. The Na it adds is miniscule. In a soilless context, it's irrelevant with runoff and in a soil context it's irrelevant to anything potted plant less than 1-2 years old - i.e. at some point it could build up in a potted plant, but not in the normal context of growing weed... a mother plant has a concern when using soft water long-term. Add fertilizer based on need.. ignore the starting EC. If you have gauranteed analysis labels, that will tell you far more accurately how much of each element you are adding than an EC (TDS) probe that can use 1 of sever conversion factors for EC-to-ppm... that alone should tell you the total lack of accuacy in that conversion. The factor used is not based on anything other than brand name. It's whimsical and only mildly correlated. Brand of tDS probe will make a 40% different ppm while testing the same volume of water. the EC reading is accurate, to be clear... and super high EC can cause problems, but you'd have to get up around 3.0 and higher. you should not be adding 2.2+EC worth of fertilizer in any common sense context. You are hydro, so 500-750ppm of well-balanced nutrition is all you need depending on life stage and how you fed prior. Your tap is a bit hard, but not in a dangerous realm if it's ~400ppm. Generally, you should be fine at 500ppm and less... general guideline, not a rule written in stone. A cheap hose filter might reduce it by 25%. You'd need something expensive, like RO, to significantly reduce PPM. The 25% might be enough and may not be necessary to start. I'd suggest something similar to the following for mature vege plants: PPM 120-130 N 40-60 P 180-200 K 100+ Ca 75-80 Mg 100ish S As you near flower, you may need to drop N -- when foliage starts to get dark/lush, drop down to 80-100ppm N. This can very as to exactly when it is necessary. A lot of it depends on how you feed early on... fertilization is a culmination of everything you've done from seed to present. How you fed early impacts what is needed later. You can see this is only ~650ppm. As vege growth stops, you'll want to dial back again, slightly... trial and error will find that happy zone. By this point the plant should be nice and stocked up in the leaves and fertilization should just be maintaining health or maybe a very slow degredation of canopy is okay too - as long as it can finish strong and healthy. A little fade is not necessary, but ensures you are not overfeeding. If you provide extra co2 and/or tightly control temp and RH you may need slightly more. Max potential photosynthesis per day is something that varies based on conditions. Better conditions will use more nutrients per day. it's a balance of several factors playing out over time. either way, this is a good ballpark to start in, then observe and adjust as needed -- that last part is always necessary. There is no 1-size-fits-all formula, but minimal adjustments will be necessary from this particular formula.
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Hashy
Hashyanswered grow question 4mo ago
Some brands do soft water and hard water nutes. I can't remember which brands do it, GHE rings a bell. Also as Asnoriu said water filters or reverse osmosis filters.
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AsNoriu
AsNoriuanswered grow question 4mo ago
25 money on amazon will buy you simpliest purifying system. Triple filter through britta or so can do trick too.
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