1. PeterL

    PeterL

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    Does it matter if one uses play sand for their DSB or plaster sand? They are both equally fine - I had a handfull of both in each hand today and they look very close to being identical - is it not that the plaster sand is going to just take a lot more washing to get clean but at the end of the day do the same thing in the DSB??

    Or have I got it all wrong?
    Please advise
     
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  3. seank

    seank

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    Plaster sand has sharp edges
     
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  4. PeterL

    PeterL Thread Starter

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    Excuse my ignorance, but what does that mean in the bigger scheme of things. I have heard something like that before when I first started but I just don't remember what the difference was
     
  5. seank

    seank

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    The sand particles in Plastersand has sharper edges, and not as smooth as playsand, meaning that it will "hurt" your critters that need to live in the sand, hence them not "populating"
     
  6. PeterL

    PeterL Thread Starter

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    I would never have guessed that as fine as it is, that the edges of the sad particle would be that critical. I have a friends who has just built a fairly large DSB and has used plaster sand, my guess would be to advise him to throw it all out and replace with play sand before connecting it up to his system as he intends doing either tomorrow or Tuesday
     
  7. seank

    seank

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    I had plastersand in my dsb, but I added seasand as well as a lot of playsand to it. I never took the plastersand out
     
  8. PeterL

    PeterL Thread Starter

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    The question is - with just using plaster sand (he stays in JHB so no beach near by to get sea sand;)) will the system work or should the sand be replaced with playsand?
     
  9. seank

    seank

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    The system will probably work, but not as effective as it is supposed to be working, or for the right reason a DSB is used for. Anyway, that is my 2cents. I think the Gurus can elaborate more
     
  10. PeterL

    PeterL Thread Starter

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    I think the bottom line is if one is goin to the trouble of building a DSB (or anything else for that matter), one might as well do it right or not at all...

    I will suggest that he change his sand but I am curious to know how it affects the setup in the bigger scheme of things considering the sand in the ocean is different all over the place but at the same token, it has a permenant flow of fresh water...

    I am going to be building a new DSB some time soon too so this information will assist me too. Ther is a point of cost saving and a point where the cost saving is detrimental to the process of what is required. What is also in the back of my mind is I have heard people using more coarse sand yet needing to make it deeper because of that - taking that into consideration and the sharpness of the sand particles of plaster sand against play sand - I am now a little confused.

    More experienced hands on DSB sand quality/type is required on this one...
     
  11. Nemos Janitor

    Nemos Janitor

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    And after the building sand was washed what exactly were the PO4 and SiO2 leaching rates compared to play sand?
     
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  12. seank

    seank

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    Seasand gets washed in the ocean, rolled around, grind etc, hence the seasand being round on the particles- hope this makes sense
     
  13. RiaanP

    RiaanP Moderator

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    When shopping for playsand, look at garden centers. A lot cheaper than Reggies. And just as dirty.
     
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  14. PeterL

    PeterL Thread Starter

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    Thanks for the feedback, considering the potential leach of unknowns from the building sand, I am not going to take that risk - play sand it is...
     
  15. jd

    jd

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    Hi Guys,

    I need some help with my substrate of my new DSB. I bought play sand from two different PlantLand garden centres in pretoria. The first batch was very very fine, when I cleaned it, it takes about 5 minutes to settle in the bucket. The second batch was more white and almost like suger but it feels not as smooth as aragonite. I took a picture of both together with sugar, can you guys please advise which one I should use?

    The more brownish one is very fine and it seems to compact very tightly.

    Please I need your help! :whistling:

    [​IMG]
     
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  16. deadmeat2016

    deadmeat2016 Wouter

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    That brown stuff looks like shit, i think the bottom one would be best :p
     
  17. Neil H

    Neil H Moderator MASA Contributor

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    bottom right loooooks the best

    agree the top one is shit
     
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  18. deadmeat2016

    deadmeat2016 Wouter

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    yea but i think it actually looks like a shit
     
  19. RiaanP

    RiaanP Moderator

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    The shit type, is that the cleanest you can get it. I doubt if the bacteria will worry about the colour. :)

    But I will also go for the almost white one.
     
  20. jd

    jd

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    Yes, that is the cleanest I can get them. The fine brown one compacts too tightly so I went for the bottom left one. The bottom right one is sugar... just for comparison.

    Thanks for the help guys, hopefully it will work!
     
  21. jacquesb

    jacquesb Retired Moderator

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    JD - the top one's particle size is far too small - you can make a small section of "miracle mud" with this - but not a DSB. BTW: What place sells "play sand" that is so BROWN?
     
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