Argendon Sandidry Pro 35C (70 PPD, Gray)

What's the difference between the 70 pint and 35 pint ratings?

The 70 pint rating applies under test conditions of 32°C and 90% relative humidity - extremely hot and humid conditions rarely found in UK homes. The 35 pint rating at 27°C and 60% humidity is more realistic for typical UK conditions. Both ratings indicate this is a high-capacity unit suitable for large spaces and serious moisture problems.

How does the built-in pump work and is it reliable?

The integrated pump automatically activates when the internal reservoir reaches capacity, pumping water through the included 6-metre hose. It can lift water up to 6 metres vertically or push it horizontally over longer distances. Users report the pump operates reliably, though it's accessible for replacement if needed. The pump eliminates the need for a removable bucket entirely.

Will this unit work effectively in an unheated basement during winter?

Yes, the smart auto-defrost system specifically addresses cold weather operation. The unit monitors for frost formation and automatically initiates defrost cycles to maintain performance. This makes it suitable for unheated basements, garages and other cold spaces where traditional dehumidifiers might struggle or freeze up completely.

How much does it cost to run continuously?

With 266 watts power consumption and Energy Star 6.0 certification, running costs are reasonable for a unit this size. At current UK electricity rates of approximately 30p per kWh, continuous operation would cost roughly £1.90 per day. The energy efficiency means you get maximum moisture removal for each pound spent on electricity.

Can I use both drainage methods or do I need to choose one?

You use one drainage method at a time, not both simultaneously. The gravity drainage works well when the unit can be positioned above a floor drain or sink. Switch to pump drainage when you need to move water upward or across longer distances. The unit comes with hoses for both methods, so you can change between them as needed.

What maintenance does this dehumidifier require?

Maintenance is minimal thanks to the no-bucket design. The included MERV-1 filter should be cleaned or replaced periodically to maintain airflow. The auto-defrost system handles ice prevention automatically. Check the drainage hoses occasionally for blockages and wipe down the exterior as needed. The metal construction is built for durability with minimal upkeep required.

Is this unit suitable for commercial or industrial use?

Absolutely. The commercial-grade metal construction, high daily capacity and continuous operation capability make it ideal for warehouses, offices, workshops and other commercial spaces. The 1000 square foot coverage handles large areas effectively, whilst the built-in pump allows installation flexibility in commercial settings where drainage options may be limited.

How loud is this dehumidifier during operation?

Users describe it as quiet for a unit of this size and capacity. Whilst specific decibel ratings aren't provided, the commercial-grade construction typically includes sound dampening features. The 180 CFM airflow requires a substantial fan, so expect some operational noise, but it's designed to be acceptable for occupied spaces including finished basements and offices.