United Chemical No Mor Problems® Preventative Algaecide & Clarifier – 1 Gallon (NMP-4GAL)
United Chemical No Mor Problems® (NMP-4GAL) is a concentrated preventative algaecide formulated to help stop algae before it starts. It’s designed for routine use to inhibit green, mustard (yellow), and black algae while also helping “polish” water for improved clarity. Many pool owners use it to reduce time spent fighting recurring algae and to help lower the frequency of heavy corrective treatments.
Key Features
- Preventative algaecide – helps inhibit green, mustard/yellow, and black algae growth
- Acts as a water clarifier – helps improve sparkle and overall water clarity
- Filter aid benefits – can help reduce filtration time and keep water looking more polished
- Compatible with chlorine pools, salt systems, and bromine pools
- Intended for ongoing maintenance to reduce “problem pool” cycles and recurring algae events
Product Details
- Brand: United Chemical
- Product: No Mor Problems®
- Type: Preventative algaecide + clarifier / filter aid
- Container Size: 1 Gallon
- Part Number: NMP-4GAL
- Pool Types: Residential pools (all common pool surfaces)
How to Use
- Use as part of a weekly maintenance routine to help prevent algae from taking hold.
- Add with the pump running and distribute around the pool perimeter or in front of a return.
- For best results, maintain proper circulation and balanced water chemistry (especially sanitizer level and pH).
- If algae is already visible, treat the algae first (shock/cleanup), then resume preventative dosing.
Why Pool Owners Use It
- Helps keep pools looking clear and clean with fewer surprise algae blooms
- Often used to reduce chlorine demand and cut down on the need for frequent corrective treatments
- Helps support filtration by improving how fine debris is captured/cleared
Related Products
- No Mor Problems (Other Sizes / Options)
- Pool Shock (Chlorine Shock)
- Algaecides (Maintenance & Treatment)
- Pool Clarifiers
- Pool Test Kits & Test Strips
- Filter Cleaners (Cartridge / DE / Sand)
Maintenance Tips
- Prevention works best when sanitizer levels stay consistent—avoid long periods of low chlorine/bromine.
- Brush “dead spots” weekly (steps, corners, behind ladders, around lights) where algae commonly starts.
- Keep filters clean—restricted flow makes algae prevention harder and can reduce chemical effectiveness.
- If you fill with well water or metal-prone water, consider adding a sequestrant to reduce staining and water discoloration.
