Recommended Posts

Hi!

I'm preparing mix for tuberous Droseras (near 3:1 sand:peat). I boiled quartz sand in distilled water few times and now it is held in cold water. My TDS-meter shows 6ppm. How do you think is it enough or it would be better to wait some time or repeat boiling?

Thanks for all thoughts.

Oleksii

Link to post
Share on other sites

Hi Oleksii,

I use (quartz) sand as sold for aquariums without any additional (pre)treatment. I never measured the ion concentration, so sorry, I can not help you with your question.

Best regards

Dieter

Link to post
Share on other sites

Thanks for answer. It is quite problematic to me to find quartz. My previous packet of it was really perfect and could be used without any doubts, but this has some additions in small quantities. I know that sundews are quite sensitive to salts in mixtures, so I decided to do some work with it.

But this is can't be compared with some previous treatment, when I used hydrochloric acid

Oleksii

Link to post
Share on other sites

6ppm is very good value. Common distilled water does have about 5ppm here. So it does look the sand is free of soluble salts.

But if you bought sand with limestone ( nearly insoluble in normal conditions - in pure water ), you cannot measure it with conductometer and you cannot remove the calcium by boiling it in water.

Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.