They also prioritized finding methods that were effective, yet not too costly. Sanitation cost is the main issue for many foreign (not the United States) countries. The average cost of home water and sanitation systems start at $50 a month, when many citizens don't make enough money to use on non-necessities.
They also focused on discovering methods that were efficient, yet not excessively expensive. Sanitation expenses are a primary concern for many foreign (not the United States) nations. The average cost of home water and sanitation systems begins at $50 per month, which is often unaffordable for citizens who cannot afford to spend on non-essential items.