# Low runoff PH 4.0 or less

**URL:** <https://ilgmforum.com/t/low-runoff-ph-4-0-or-less/35124>\
**Category:** Climate\
**Created:** [September 12, 2019, 7:04pm UTC](https://ilgmforum.com/t/low-runoff-ph-4-0-or-less/35124 "2019-09-12T19:04:20Z")\
**Posts on this page:** 7\
**Page:** 1

<div class="post-metadata">

**Author:** ![NewbieNick](https://avatars.discourse-cdn.com/v4/letter/n/c89c15/32.png) [@NewbieNick](https://ilgmforum.com/u/NewbieNick)\
**Post date:** [September 12, 2019, 7:04pm UTC](https://ilgmforum.com/t/low-runoff-ph-4-0-or-less/35124/1 "2019-09-12T19:04:20Z")

</div>

Im PH my water to 6.0-6.5 and i just tested my runoff for the first time and its testing at 4.0 or lower. Any thoughts or problems with that? Ive always tested my water before feeding and ive never had a problem and my plant looks great even right now but the runoff is so acidic.

---

<div class="post-metadata">

**Author:** ![blackthumbbetty](https://sea2.discourse-cdn.com/growingmarijuana/user_avatar/ilgmforum.com/blackthumbbetty/32/528626_2.png) [@blackthumbbetty](https://ilgmforum.com/u/blackthumbbetty)\
**Post date:** [September 12, 2019, 7:25pm UTC](https://ilgmforum.com/t/low-runoff-ph-4-0-or-less/35124/2 "2019-09-12T19:25:10Z")

</div>

You’ve never tested the run-off?

How old is your plant? Medium you’re using? PH of tap water? Nutes? What is the EXACT pH of your input?

---

<div class="post-metadata">

**Author:** ![NewbieNick](https://avatars.discourse-cdn.com/v4/letter/n/c89c15/32.png) [@NewbieNick](https://ilgmforum.com/u/NewbieNick)\
**Post date:** [September 12, 2019, 7:41pm UTC](https://ilgmforum.com/t/low-runoff-ph-4-0-or-less/35124/3 "2019-09-12T19:41:02Z")

</div>

almost 8 weeks old, FF Ocean, PH of the tap water is around 5. I add Cal mag and use General hydroponics trio. i cant tell you the exact because my two digital ph monitors broke and now im testing manually with ph test kit. Its in the range of 6-6.5.

---

<div class="post-metadata">

**Author:** ![NewbieNick](https://avatars.discourse-cdn.com/v4/letter/n/c89c15/32.png) [@NewbieNick](https://ilgmforum.com/u/NewbieNick)\
**Post date:** [September 12, 2019, 7:42pm UTC](https://ilgmforum.com/t/low-runoff-ph-4-0-or-less/35124/4 "2019-09-12T19:42:05Z")

</div>

Its also my first water since transplanting it, so theres alot of new soil and stuff in it. Idk if it just needs time to even out or what.

---

<div class="post-metadata">

**Author:** ![HornHead](https://sea2.discourse-cdn.com/growingmarijuana/user_avatar/ilgmforum.com/hornhead/32/267986_2.png) [@HornHead](https://ilgmforum.com/u/HornHead)\
**Post date:** [September 12, 2019, 7:54pm UTC](https://ilgmforum.com/t/low-runoff-ph-4-0-or-less/35124/5 "2019-09-12T19:54:57Z")

</div>

Next time ph water to 7.0 for next couple of waterings

---

<div class="post-metadata">

**Author:** ![blackthumbbetty](https://sea2.discourse-cdn.com/growingmarijuana/user_avatar/ilgmforum.com/blackthumbbetty/32/528626_2.png) [@blackthumbbetty](https://ilgmforum.com/u/blackthumbbetty)\
**Post date:** [September 12, 2019, 8:25pm UTC](https://ilgmforum.com/t/low-runoff-ph-4-0-or-less/35124/6 "2019-09-12T20:25:37Z")

</div>

Hmmmm, that is some acidic tap water. You might need to look into distilled or ro water.

That is a huge range.

---

<div class="post-metadata">

**Author:** ![Drinkslinger](https://sea2.discourse-cdn.com/growingmarijuana/user_avatar/ilgmforum.com/drinkslinger/32/96644_2.png) [@Drinkslinger](https://ilgmforum.com/u/Drinkslinger)\
**Post date:** [September 13, 2019, 6:05pm UTC](https://ilgmforum.com/t/low-runoff-ph-4-0-or-less/35124/7 "2019-09-13T18:05:27Z")

</div>

Do a slurry test.

3-4oz distilled water, 2 tbsp soil from around the root area, mix them well and let sit for 15min. Then test.

This is about as accurate a soil reading as you can “easily” get.