[concept]

As you guys know, I am a total newb...my TDS is on the hike and I don't know how to pinpoint the problem, however, I have a fair idea...

System:

Pre-filter (new)
Merlin RO (bought 2nd hand, no idea of age)
DI Vessel (new)

TDS as follows:

Source: 335
After pre-filter: 328
After RO: 79
After DI: 18

I assume as all else is new, the RO unit needs its filters replacing?!

 

[Sunshine/Cleaning]

Resin prob wants changing. What size is DI? How long ago was it new resin?

[concept]

about 4/5 weeks, and I only started producing a few weeks back...

[Sunshine/Cleaning]

What size is the DI vessel?

[concept]

18"

[Steve CM]

i've never used a merlin but 78 after the ro sounds massivley high

[RO-Sheen]

Try flushing your RO for about 30 minutes with water. Might just need a good clean. if poss, flush it with the DI water in your tank

[concept]

even though i have had a tds reading of 0 up til now?

[RO-Sheen]

possibly, yeah....You should rinse your RO out about once every 7-14 days. If you dont you will find that it doesnt work so well.
Think of your RO as a filter. It will filter out a lot of impurities but in time it will clog up so you need to clean it.

[jefftemperley]

just buy new filters from gapswater for the merlin, just ordered some today for mine just found out you should change the carbon filter every 3 mths roughly and i havent been doing it

worth speaking to them they know there stuff

[concept]

which ones the carbon filter??

will flush it 2moro and review.

cheers for the advice guys!

[concept]

that said...how do i flush the merlin?!

[Sapphire Window Cleaning]

Concept that tds reading after RO is pretty high mate, it wants to be less than 25 otherwise the resin will need changing a lot.

[concept]

replace filters in ro then?

[Craig Trevain]

Sounds like you need a new membrane, if the pre filters are new but the membrane 2nd hand i'd look to that.

[Craig Trevain]

Hi Matt, hows the mini pole?!

[Sapphire Window Cleaning]

Hi Craig yeah its very good, a lot lighter than the previous one mate.
Getting a larger van in the next couple of weeks.
Suppose you dont fit cages and tanks do you?

[Sapphire Window Cleaning]

Concept I would give it a good flush for atleast 3 hours just to make sure, if its still the same then I would get new membrane.

[Craig Trevain]

I've got to be careful not to be seen peddling!! on here (like some suppliers do) so if you get a chance call me tomorrow.
As we can help on this.

[Sapphire Window Cleaning]

Craig do you have msn?