Can I use a Money Pool to collect money from customers?

No. Money Pools are used to collect money from friends and family. All the contributions you receive through your Money Pool are considered personal payments and are not eligible for PayPal Buyer Protection and all contributions taken must be in line with the PayPal User Agreement and Acceptable Use Policy.  

If you want to get paid for items or services you sell, then you can set up a PayPal.Me link.