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  1. DrRob

    RO under 100 quid?

    To be honest that's not a bad price for a pumped unit, however vyair have some deals on with the storage tanks thrown in for only slightly more than that, but you're still £20-30 quid shy of a pumped unit for most of the prices I've seen. I saw someone selling some display stock recently, which...
  2. DrRob

    RO Remineralisation

    Tropic Marin do various salts. Seachem do equilibrium. Various shrimp places have their mixes that they sell. Personally I make my own, but it sounds like you want an out of the bottle solution. What are you keeping?
  3. DrRob

    Water Softener?

    Basically, it's as likely to soften your water as the magnetic field driving your filter impeller is.
  4. DrRob

    Hard Water or RO, which is better?

    There's also the issue with the narrow pipes. Your 15mm copper has a fair amount of water in it at 3 bar. It doesn't take much to get the pressure up to 9 bar when you're measuring in 1/8 inch RO pipe.
  5. DrRob

    Hard Water or RO, which is better?

    Depends if anyone is using the shower while you're pumping RO. Also will depend hugely on the local pipework. 1/8 inch is a real pain for pressure drop offs.
  6. DrRob

    How do I reduce TDS?

    Essentially yes. The simplest way to reduce TDS is to replace water with lower TDS water. Always worth checking out why the TDS is rising, although it may simply be ongoing tank running and evaporation.
  7. DrRob

    TDS Meters Which One?

    I use the EZ, simple to use, just remember to turn it off again.
  8. DrRob

    Another RO Newbie... can you help ?

    1) Yes, although you get better quantities if the unit is warmer. 2) Yes, although you'll want to wash the membranes every so often and it mustn't dry out. 3) Properly sealed, in theory indefinitely, in practice it'll always leech in contaminants eventually, but it'll stay good for a long time...
  9. DrRob

    Can I use tap water to cycle new tank then switch

    You get about a seventh of the water in, the rest goes to waste. Pumps help the ratio, so do improve the cost in the long term. As for the rental issue, do you have an accessible washing machine point? If you do you can plumb from a splitter without messing with any pipes in any way that the...
  10. DrRob

    Can I use tap water to cycle new tank then switch

    Another vote for your own unit, the petrol costs on constantly picking up the bottles is an issue all in itself unless you're on the LFS's doorstep. Don't see why you can't cycle with tap water, although I'd slowly change the tank over to softer water rather than a sudden shift so you don't...
  11. DrRob

    Using the water from a dehumidfier

    It'll contain anything condensible from the air. That includes mainly water, but also any atmospheric pollutants that condense at sub zero temperatures as well. Personally I'd avoid, but it'd depend a lot on what the air was like in your flat.
  12. DrRob

    Levamisole hydrochloride, shrimp and water clarity

    Levimasole is a known neurological excitement agent, so I can imagine shrimp getting jumpy on it, given their less well protected nervous systems. Otherwise, it may have killed some microfauna that were responsible for the clouding. Final thought is that there may be something simple in...
  13. DrRob

    greyish mist in aquarium

    I was going to say bacterial bloom. Yes, it will clear.
  14. DrRob

    Water barrel idea over!!

    I've cut one up and used it as a sump. Small footprint under the tank and good volume. Tap on the bottom is useful for water changes.
  15. DrRob

    Water butts instead of Tap

    You can use rainwater, but you have to watch a few things. First up, it's a good idea to not collect the first flush of any rain (there are cunning valve thingamies that do this in the downpipe) as that tends to have a whole pile of stuff off the roof in it. Secondly rain water depends a lot on...
  16. DrRob

    Water softeners and aquariums..?

    Sodium levels in softened water depend on the hardness of the water you're starting with. Sounds like you're going to be at the top end like me if you try this. Remember that drinking this stuff can also be bad for you so you'll need a bypass tap for drinking water if you go for a whole house...
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