Compatible pumps ARE that rare these days... I've seen them being sold online for anywhere from $500 - $3,000 depending on their condition. I've purchased a few

Compatible pumps ARE that rare these days... I've seen them being sold online for anywhere from $500 - $3,000 depending on their condition. I've purchased a few as backups because it's not a question of IF my current one will fail, it's WHEN.