Classic Logo Refresh for ProLine

I’m updating the ProLine, Inc. – Watertown identity and need a timeless, classic logo that feels at home in the Midwest and speaks instantly to cleaning equipment sales and service. The new mark must keep our full name while introducing a clean, easily recognizable water-droplet symbol that hints at the water pressure washers, parts washers, and floor scrubbers use, without drifting into anything overly modern or trendy. Our current artwork doesn't meet the dpi requirement; I want something that looks established yet fresh, honours our family-owned Christian roots, and will reproduce well on trucks, uniforms, invoices, and the web.

Here’s what will make the project a success for me:
• A classic styling approach (no ultra-sleek or futuristic treatments).
• The company name paired with a distinctive water-droplet symbol.
• Colour and monochrome versions that scale from business cards to building signage. Ours are currently navy and gray, and I don't want to lose name identification recognition.
• Final deliverables in layered vector (AI/SVG), high-res PNG/JPG, and PDF, plus a brief style sheet noting colours and fonts.

Please share your thoughts on how you’d shape the droplet, any typography ideas that convey reliability, and the revision process you follow. I’m eager to see concepts that let our customers recognize ProLine at a glance for the next decade and beyond.

Thank you!