I'm not sure about using it specifically to regenerate purigen; but Safe is highly concentrated. I use it in all my tanks and the measurements are all fractions of a teaspoon (smidge, dab, pinch). I think its like 1/2 teaspoon for 75 gallons.

Just checked their site and they claim "If you are using Safe instead of Prime, you should use about 16 grams of Safe per cup of water." specifically for regenerating purigen. Seachem - Safe

 

I'm not sure about using it specifically to regenerate purigen; but Safe is highly concentrated. I use it in all my tanks and the measurements are all fractions of a teaspoon (smidge, dab, pinch). I think its like 1/2 teaspoon for 75 gallons.

Just checked their site and they claim "If you are using Safe instead of Prime, you should use about 16 grams of Safe per cup of water." specifically for regenerating purigen. Seachem - Safe

I've seen that also. 16 grams = 3.2tsp(1.25g = 1/4 tsp). That just seems like a lot to me when 1/4 tsp treats 300 gallons. For comparison 1 capful(5mL) of prime treats 50 gallons. When I measured it out two capfuls equaled 1 tbs. If you use 4 tbs to 1 cup of water to dechlorinate after the bleach soak as directed that's an amount that will treat 400 gallons(8 capfuls @ 50 gallons per capful).

3.2tsp(16 grams) of Safe would treat 3840 gallons of water. 3.2 tsp = 12.8 - 1/4 tsp x 300 gallons.

What am I missing here? If you just compare the amount to treat a given number of gallons of water for each I come up with 1/2 tsp of Safe for 1 1/2 cup of water.

 

I use Safe also and I typically use what I think would work in the amount of water that I use. So for 2-3 cups of water, I'll use maybe a 1/2 teaspoon to a teaspoon. You'll know it's working if you can't smell the bleach anymore. Often times, I'll recharge the Purigen with bleach, then I'll let it sit Safe for a day or two. Usually I'll forget about it and let it sit for several days. I haven't had any problems that I'm aware of.

 

Anyway, I was hoping someone that has been using Safe for regenerating Purigen would throw their two cents worth in.

Someone already did!

 

Never understood it either.

 

Anyway, I was hoping someone that has been using Safe for regenerating Purigen would throw their two cents worth in.

 

I don't know why more people use Prime instead Safe. I started a my 36 gal last December, so it'll be almost a year. I've also added 2x 5 gal tanks since then. I got the big container for like $30 on Amazon. I've only used about 1/4 of it with regular 30-50% water changes on each tank. At this rate, it'll be another 3 years before I have to buy any dechlorinator. Well, I'm looking to get a 75+ gallon this year, so maybe it'll last not that long, but still, getting 2-3 years worth of dechlor for $30 is a no-brainer imo.

 

Totally agree! I've seen people preaching about how you have to use dry ferts and then talking about Prime in the very next comment. I have to believe they don't realize Safe exists, that it's not identical to Prime, or don't see the cost savings for how quickly they use it.

 

I've seen that also. 16 grams = 3.2tsp(1.25g = 1/4 tsp). That just seems like a lot to me when 1/4 tsp treats 300 gallons. For comparison 1 capful(5mL) of prime treats 50 gallons. When I measured it out two capfuls equaled 1 tbs. If you use 4 tbs to 1 cup of water to dechlorinate after the bleach soak as directed that's an amount that will treat 400 gallons(8 capfuls @ 50 gallons per capful). 3.2tsp(16 grams) of Safe would treat 3840 gallons of water. 3.2 tsp = 12.8 - 1/4 tsp x 300 gallons. What am I missing here? If you just compare the amount to treat a given number of gallons of water for each I come up with 1/2 tsp of Safe for 1 1/2 cup of water.

Can someone explain to me where are you getting the 16grams = 3.2 tsp from ? Grams being a weight form 28.35 grams = 1 Oz that’s table spoons we’re talking here according to this .

 

You're responding to a thread from eight years ago. Some of the participants haven't been on in several years.

Just keep that in mind, as they may not see your post.