Tap water TDS at 25ppm

[JackDemetriou]

Hello,
I live in Scotland, UK. I have just bought a HM TDS meter and tested my tap water today, and it shows a TDS of around 25ppm. Is this common?

I am looking to start a reef tank and wondering if I can just use the tap water without an RODI since the TDS is so low?

 

[PirateMonkeyReefer]

That’s how low the TDS is for me before hitting the DI canisters! I’d still recommend some kind of RODI to get the TDS to 0. The benefit of your TDS already being so low is that it would take a long time before the filter media is exhausted in a 4 stage unit

 

[Malifry97]

That’s how low the TDS is for me before hitting the DI canisters! I’d still recommend some kind of RODI to get the TDS to 0. The benefit of your TDS already being so low is that it would take a long time before the filter media is exhausted in a 4 stage unit

This^

 

[homer1475]

I have 20 out of my tap. I still use an RO/DI as I have copper pipes. My media last a long time.

 

[Uncle99]

25ppm out of the tap is great for human consumption, but we don’t know what that 25 is, likely some disinfectant.

 

[jordan10]

dang I got 175 out tap crazy but yea still needs run throw rodi. Best of luck

 

[Duncan Tse]

Thought I could get away without using one for the first 2 years of my tank. Vancouver's tap tds is 12ppm.

Always had some type of brown algae on my sandbed until I switched over to RODI. Within a couple months the sand is so clean and white now

 

[Jenuvio]

I have 900 TDS coming from my tap.

Been using RO shop water with 4-10TDS, not sure if this is ok as it has been fine for a year already with no coral issues.

But if purchasing an RODI.. which RODI Unit do you guys recommend?

 

[BZOFIQ]

25 TDS is really low out of TAP which is great.

If you grow softies only, I'd just use conditioner to remove chlorine, thats assuming there is no chloramines in the water.

If you grow SPS, then yeah get an RODI unit.

 

[n21benson]

I have 900 TDS coming from my tap.

Been using RO shop water with 4-10TDS, not sure if this is ok as it has been fine for a year already with no coral issues.

But if purchasing an RODI.. which RODI Unit do you guys recommend?

I use this one, works great!

4 Stage 50GPD Essentials+ RO/DI System