THIEVES (literally!). I paid for Abacus to replace my vinyl pool liner in March '08. They took our money and ran. The owner, Ty, occasionally promises that "the check is in the mail" for our reimbursement. Other times, he pretends that I have reached the wrong number when he answers the phone, despite the fact that I recognize his voice.BEWARE! They use a false address on their invoices. This company is NOT legit.