Can I produce a tap on a RO Unit to get HMA too

[Zebra Pleco]

Hi all, looking the photo below, Can I place a tap / T piece in somewhere, so that I can draw of HMA water from the system and then mix it with the outputted RO Unit water.

Can this be done.

 

[macvsog23]

Hi I am amusing that No1 pipe is your input and No 3 pipe is your product water?
By intersecting Pipe No 1 with a pipe from a HMA unit and adding a control on the HMA pipe your produce tampered water. I recommend a "needle control vale" this will allow you to adjust your HMA flow rate to a very accurate amount.
Be aware that the amount of product water from the R/O unit will alter due to temp and water pressure so your get fluctuations in the final tampered water.
A Booster pump will cure this.

 

[Zebra Pleco]

Sorry I wasn't clear in my question, I at present do not have a HMA unit, but after speaking to a few people at work, I was told that I can get HMA water from my RO Unit too. So I don't need to have a separate HMA Unit, the RO Unit will produce RO water and also HMA water if I connect a T piece somewhere.

Is this correct?

Pipe 1 is my Input water from My tap, the black line (2) goes to my storage drum, and 3 is the RO Water Output.

I have 4 pipes around about the device Part 8 in my diagram, could I disconnect one of these and will I get HMA water from there? or will the pressures be no good.

If not for the sake of £70 or so, will get an HMA unit.

Lastly if getting a HMA unit, 2 or 3 stage if paired with the above RO System.

 

[D-MAC]

Hi Stuart
All you have to do is add these into your 3 x 10" pods...Job done.
http://cgi.ebay.co.uk/HMA-CBR2-REPLACEMENT-FILTER-SET-/160395376171?pt=UK_Pet_Supplies_Fish&hash=item25584f362b

 

[meloizias]

yeah would love to do same sort of thing rather than getting two units, more of a space issue.

Derek why would adding hma filters change anything.

i have heard the same that RO units can make HMA water.

thanks
mike

 

[D-MAC]

i have heard the same that RO units can make HMA water.

thanks
mike

They will only produce HMA water if they have the heavy metals cartridge included in the system...You can set up the systems to do anything you want as long as you have enough of the standard 10" pods and the right cartridges.

 

[Jo Crane]

The reason for using a HMA is to up the amount of filtered water produced as apposed to just adding tap water too RO.
Adding a T junction will split the water feed into the unit lowering pressure too the RO hence producing even less and creating more waste water you can add a pump but will need to regulate the outlet water will always take the easiest flow out its not how they are designed too be used and may turn out a complete pain make sure you have plenty of spare piping

You will need to put it on the pipe just below the number 8 if you are to do it but I wouldnt myself

 

[Zebra Pleco]

Derek and Jo, thank you thats the answers I needed, I will go and get a HMA unit from eBay and mix it with the RO.

Off to look for some needle valves.

 

[macvsog23]

http://cgi.ebay.co.uk/FESTO-GRO-QS-6-FLOW-REGULATOR-NEW-/250831144168?pt=LH_DefaultDomain_3&hash=item3a66b384e8

 

[Lornek8]

The reason for using a HMA is to up the amount of filtered water produced as apposed to just adding tap water too RO.
Adding a T junction will split the water feed into the unit lowering pressure too the RO hence producing even less and creating more waste water you can add a pump but will need to regulate the outlet water will always take the easiest flow out its not how they are designed too be used and may turn out a complete pain make sure you have plenty of spare piping

You will need to put it on the pipe just below the number 8 if you are to do it but I wouldnt myself

This is only necessarily true if you try to produce both at the same time. If you are only producing one at a time by utilizing valves to isolate each leg then the RO output would not be reduced and you could produce HMA water.

 

[macvsog23]

I produce both at the same time.

I use a booster pump more to produce a constant supply pressure than to get more product water.
UK water pressure is around 2.5 bar an R /O unit will work at around 2 bar.
An HMA will work at up to 2 bar reducing the flow in to the HMA will not affect the quality of water in fact it will improve it.
By placing a needle valve on the outgoing HMA side and reducing the flow, your increase the effectiveness of the HMA unit, as long as the input to the R/O unit is around 2 bar all will work well Mine has been working like this for over 4 years now with no problems.

 

[Jo Crane]

This is only necessarily true if you try to produce both at the same

Goes without saying really? if the RO isn't running the drop in pressure is no issue as with the HMA

 

[Lornek8]

Goes without saying really? if the RO isn't running the drop in pressure is no issue as with the HMA

Only if you know about these things which not everyone necessarily does, thus thought it be a good idea to bring it up. Never really thought that the intention was to necessarily run both at the same time myself.

 

[Zebra Pleco]

My plan was to have something like this (where the new red line would be HMA), where I could use one device and get two outputs (HMA and RO) then combine both outputs from the one device and pump straight into tank, but never thought of pressures etc.

 

[Zebra Pleco]

Bob thanx for the link to needle valves, would never of found them.

 

[macvsog23]

Matie you not going to get it to work your reducing the pressure on the flow control side this will cause problems
just bite the bullet and get a HMA unit then blend the two.

 

[meloizias]

haha, rareaquatics have a nice HMA unit which isnt expensive