Question about Salinity/SG
- Thread starter KMS.Kyle
- Start date
shifty51008
12-5 Chiefs record
I hope you mean 1.025
shifty51008
12-5 Chiefs record
Rodi = reverse osmosis + dionization.
That is the kind of water you want to use in a reef tank, it will remove everything from tap water and make it pure water with 0 tds.
That is the kind of water you want to use in a reef tank, it will remove everything from tap water and make it pure water with 0 tds.
shifty51008
12-5 Chiefs record
You already have ro water from the tap? I doubt that, it would cost the city way to much to give everyone ro water. There are ro and rodi filters that people buy to get that water.
shifty51008
12-5 Chiefs record
After searching you do have one if the best places for drinking water but average tap tds is 20ppm. You dont know what that 20 consists of though. You could get away with just adding a di stage and run your tap water through that and bring the tds down to 0. Depending on how much water you make for your tank from water changes and top off's it can last a couple months before needing changed
CStrickland
New member
If your tank water and your change water are both 1.025 your salinity wouldn't go up. You aren't using saltwater to replace evaporation and having your salinity climb all week to need lowering when you do a change, are you?
KMS.Kyle
New member
So far it's remained the same.
Shifty - Where do you suggest I get the "DI Stage" Is it an add on to the tap?
And my Salinity hasn't moved much around 1.025 - If it does end up going higher than where I want it - would you just add normal water to lower it?
Thank you for all the help and sorry for sounding so confused - This is the one area of this hobby (only 3 weeks in) That confuses me
Shifty - Where do you suggest I get the "DI Stage" Is it an add on to the tap?
And my Salinity hasn't moved much around 1.025 - If it does end up going higher than where I want it - would you just add normal water to lower it?
Thank you for all the help and sorry for sounding so confused - This is the one area of this hobby (only 3 weeks in) That confuses me
Heatherabel3
New member
When you do top offs, you want to just use RO/DI water. When doing a water change you do saltwater. If you want to bring it down you can start doing 1.024 water changes and that will slowly bring it down. Or you can add lower salinity, 1.022 or so, and that will bring it down further. At 1.025 though you are good as long as you stay on top of keeping your tank water topped off. I, personally, wouldn't let it get higher than that.
CStrickland
New member
What heather said.
Water evaporates all the time from your tank, so you regularly add unsalted water to replace that because the salt is still in the tank. That should keep your salinity stable. When you do a water change you are replacing old salt water with new salt water that is the same sg. If you do it that way the salinity of the tank shouldn't change much
Water evaporates all the time from your tank, so you regularly add unsalted water to replace that because the salt is still in the tank. That should keep your salinity stable. When you do a water change you are replacing old salt water with new salt water that is the same sg. If you do it that way the salinity of the tank shouldn't change much
hkgar
Active member
RO water from a city service does happen. I lived in Cape Coral Florida and had RO water. They even had separate water lines to homes for the waste water and it was used for out door faucets and irrigation.
KMS.Kyle
New member
Thanks a lot guys - You've all been incredible
One last question - If my water is already RO - Would something like this benefit me?
http://www.bulkreefsupply.com/brs-4-stage-value-plus-ro-di-system-75gpd-1.html
Also - How do I hook something like that up in my apartment?
One last question - If my water is already RO - Would something like this benefit me?
http://www.bulkreefsupply.com/brs-4-stage-value-plus-ro-di-system-75gpd-1.html
Also - How do I hook something like that up in my apartment?
TangingOut
New member
Thanks a lot guys - You've all been incredible
One last question - If my water is already RO - Would something like this benefit me?
http://www.bulkreefsupply.com/brs-4-stage-value-plus-ro-di-system-75gpd-1.html
Also - How do I hook something like that up in my apartment?
If you have a braided steel hose underneath your sink for the cold water you can put in one of these https://www.google.com/search?q=joh...2MKHZ2EBAkQgjYI_AIwBg&ei=3oRVVtaVLJbGjwOdiZJI
hkgar
Active member
Yes it it would be a benefit. Your water needs to be 0 tds and therefore a DI canister is required. I believe there are faucet adapters that you can use to hook it up.
Something like this
http://www.bulkreefsupply.com/index...connect.html?gclid=CNzxgcTYq8kCFYcBaQodVrsPoA
Something like this
http://www.bulkreefsupply.com/index...connect.html?gclid=CNzxgcTYq8kCFYcBaQodVrsPoA
edinphilly
New member
Yes you'd benefit unless you're filtering at the tap your good city water sits in your (I assume) copper pipes and could over time build up copper in your system which you want to avoid.
CStrickland
New member
Thanks a lot guys - You've all been incredible
One last question - If my water is already RO - Would something like this benefit me?
http://www.bulkreefsupply.com/brs-4-stage-value-plus-ro-di-system-75gpd-1.html
Also - How do I hook something like that up in my apartment?
Ive got this one http://spectrapure.com/Refurbished-90-GPD-RODI-System it's a little faster and that company is good at water (I heard they do Starbucks systems hehe). In my apartment I can't do anything to the pipes so I just screw the end onto the faucet with an adapter from the hardware store when I need to make water.
These units will re-ro your water but I think that might be a good idea because the di stage is expensive and only for removing certain things so you want the water almost all the way pure before it hits the di and anything your city adds like chlorine or the water picks up on the way to your tap like copper, all of that will be hard on your di cause it's meant to work on water that was just filtered through an ro.
garygonzales
Member
since he says hes got ro tap water do they make a di that connects just to the faucet?
hkgar
Active member
Cities that supply RO tap water re-mineralize the water so it is about 75 tds, thus the need to "re-RO" the water prior to DI.
I use the Spectrapure ro membrane that gets my water to 2 tds prior to di. Tap (well) water is about 370 after the softener.
