After completing STEP 1, clean all surfaces and refill your hot tub. Begin your weekly hot tub maintenance routine by using hot tub serum one 1oz ( 3 cap-fulls) per 100 gallons.

Add 3 cap-fulls (1oz.) every seven days. Try to add same day every week, reduce amount if excess foaming occurs.

Balance the water:
Total Alkalinity – 100-180
pH – 7.4-7.6
Calcium Hardness – 150-400

After maintaining balance for 24 hours, shock the water with an approved sanitizer.

Hot Tub Serum products work in conjunction with your regular sanitizer. It
is important that you maintain sufficient sanitizer in your hot tub at all times.
Do not let your sanitizer run out! If you hot tub water becomes cloudy/
foaming/yellow/green/smells then you should shock the water and increase
sanitizer level. If poor water conditions persist, Clean your cartridge filters and

Hot Tub SERUM Maintenance liquid is an EPA registered bio film removal product. It is the only product in the spa industry that aids in the removal of bio-film according to the EPA.  It is designed as a weekly addition to your customers sanitation regiment. The use Hot Tub SERUM Maintenance helps to destroy the bacteria that your customers current sanitizer can’t. It reaches down deep into the plumbing of the spa to help prevent the recurring buildup of sludge and bio-films that plagues every hot tub. The weekly use of Hot Tub Serum Maintenance will also help to keep the water in the spa crystal clear, soft and clean.