Custom Water Blasters & Repairs. All your water blasting needs. Karcher, Spitwater, Denjet, Bar Group sales and service agent. Interpump stockists with a full range of spare parts & accessories. High pressure hoses to custom size, parts and & accessories, repairs, sales & service of machines up to 40,000 PSI. … Continue reading About – Waterblaster Sales, Service, Repairs, Parts & Accessories. Mackay.