No need to get all huffy & puffy about it. I mean what exactly do you want, someone to give you a by guess or by golly answer to your question? Without knowing exactly what your water source is treated with, and how much, no one on MFK can properly answer your question. The dosage recommendations given by Seachem are for very specific quantities of chlorine/chloramine, and for very specific quantities of water. See below.
If you are treating your water using the maximum rates+ given as an example by Seachem (1 capful (5 mL) for each 200 L (50 gallons*) of new water) then apparently you are treating for 4+ mg/L chloramine, or 5+ mg/L chlorine. So using those values calculate what amount of Safe you need to treat the same volume of water.
I suspect that you are using more water conditioner than required, which is why I previously suggested finding out what the actual disinfectant levels are in your local supply. Either way, using the values below you should be able to figure out what you were wanting to know. Good luck.
Prime directions
Use 1 capful (5 mL) for each 200 L (50 gallons*) of new water. This removes approximately 1 mg/L ammonia, 4 mg/L chloramine, or 5 mg/L chlorine. For smaller doses, please note each cap thread is approx. 1 mL. May be added to aquarium directly, but better if added to new water first. If adding directly to aquarium, base dose on aquarium volume. Sulfur odor is normal. For exceptionally high chloramine concentrations, a double dose may be used safely. To detoxify nitrite in an emergency, up to 5 times normal dose may be used. If temperature is > 30 °C (86 °F) and chlorine or ammonia levels are low, use a half dose.
Safe directions
Directions for 10 g and 50 g
To remove
Chlorine: use 1 measure to each 130 L (35 gallons*) of tap water (removes 1 ppm)..
Chloramine: use 1 measure to each 100 L (25 gallons*) of tap water (removes 1 ppm).
Ammonia: use 1 measure to each 32 L (8 gallons*) of tap water (removes 1 ppm). Do not overdose!
For reference, 1 measure = 100 mg. To detoxify nitrite/nitrate in an emergency situation use up to 5 measures to each 40 L (10 gallons). Use fish to gauge toxicity reduction as test kits will still show presence of nitrite/nitrate even when detoxified. May be added to aquarium directly, but is better if added to new water first. If adding directly to aquarium, base dose on aquarium volume. If temperature is > 30 C (86 F) cut dosing in half.
Directions for 250 g and larger
To remove
Chlorine: use 5 g (1 tsp.*) to each 1625 L (450 gallons*) of tap water (removes 4 ppm).
Chloramine: use 5 g (1 tsp.*) to each 1250 L (300 gallons*) of tap water (removes 4 ppm).
Ammonia: use 5 g (1 tsp.*) to each 400 L (100 gallons*) of tap water (removes 4 ppm). Do not overdose!
To detoxify nitrite/nitrate in an emergency situation use up to 5 g (1 tsp.*) to each 400 L (100 gallons*). Use fish to gauge toxicity reduction as test kits will still show presence of nitrite/nitrate even when detoxified. May be added to aquarium directly, but is better if added to new water first. If adding directly to aquarium, base dose on aquarium volume. If temperature is > 30 C (86 F) cut dosing in half
