How to Use the Volt FX-8Li for a Sparkling Clean Pool

Published by Cam Steele on 10/22/2025

Keeping your pool crystal clear doesn’t have to be a chore. If you own the Volt FX-8Li cordless pool vacuum, you’ve got a powerful, flexible tool at your fingertips! Perfect for spot cleaning and deep cleaning alike, you’ll learn how to get the most out of your Volt FX-8Li! From fast touch-ups to an in-depth seasonal scrub, you’ll be cleaning like a pro in no time!

Why the Volt FX-8Li is a Smart Choice for Your Pool

The Volt FX-8Li is built for pool owners who want power, convenience, and cordless freedom in one lightweight cleaner.

Cordless Convenience: No hoses or cords, just charge, submerge, and clean anywhere in your pool or spa.
Strong Suction Power: A high-flow motor and large debris chamber easily capture everything from fine sand to larger leaves.
Versatile Design: Works great in both above-ground and in-ground pools with a removable vacuum head for tight spots and steps.
Long Battery Life: Up to 60 minutes of consistent cleaning on a full charge.
Simple Maintenance: The clear debris chamber and reusable filter bag make cleaning and storage quick and easy.

Prep Before You Clean

Before you power on the Volt FX-8Li, start with the following steps:

Skim the surface & remove large debris
Use a leaf skimmer or net to collect leaves, sticks, and surface debris. While the Volt is powerful, removing large items prevents clogging.
Brush walls and steps lightly
If algae or buildup has begun to form, a quick brush loosens grime so the Volt can capture it more easily.
Check water chemistry & adjust if needed
A balanced pool (pH, alkalinity, sanitizer) contributes to better cleaning and less scale buildup. To test or improve your water chemistry, check out our large supply of Test Kits and pool-regulating Chemicals at EZ Pool & Spa Supply.
Ensure the filter and pump are running properly
The Volt cleans what’s on surfaces, but your filtration system will handle whatever remains in suspension.

Spot-Cleaning with the Volt FX-8Li

Spot-cleaning is ideal when you see isolated debris. This can occur after a storm, a heavy wind, or a pool party. Here’s how it's done:

Power on the Volt and submerge it
Turn on the unit before putting it in the water to avoid air pockets.
Go slow and low
Pass the cleaner slowly over the dirty area. The vacuum works better when you sweep methodically, letting it collect debris rather than rushing.
Overlap passes
For best results, overlap your paths by about 10–15% so you don’t leave streaks or missed patches.
Raise and empty the filter cartridge often
For spot cleaning, it will fill more quickly. Rinse the cartridge between uses.
Check for clogs or blockages
If suction seems weak, inspect the intake for accidentally sucked-in debris (like pebbles or small leaves).

Pro Tip: Spot-cleaning is ideal when you see visible debris but don’t want to run a full cleaning cycle.

Deep Cleaning Your Pool with the Volt FX-8Li

When it’s time for a full, deep clean at the start of the season, follow these steps:

Divide your pool into zones
Break the pool into manageable sections (shallow end, deep end, steps, etc.) so you can methodically cover the entire surface.
Start in the deep end and work back toward the shallow end
Debris naturally flows downward, so starting deep helps you push particles toward the filter or skimmer.
Use overlapping, slower passes
Let the Volt’s suction and brushes do the work; you don’t need to rush.
Pay attention to corners and wall transitions
These are often missed in routine cleaning. Angle the cleaner to reach into crevices.
Raise, rinse, and reinsert the filter cartridge mid-cycle if needed
If the cartridge gets too clogged, it hampers the flow. Rinsing ensures suction stays optimal.
Do a final sweep of the entire floor
After covering zones, do one last slow pass across the full floor for consistency.
Run your pump & filter
After Volt cleaning, run your filtration system to capture residual fine particles and maintain water clarity.

Post-Clean Maintenance & Tips

Rinse and dry the filter cartridge
Once your session is done, rinse it thoroughly and let it air dry before storage.
Inspect O-rings, seals, and propellers periodically
A slight wear or debris in a seal can reduce suction or cause leaks.
Store in a shaded, dry place
Protect the battery and electronics from direct sunlight or extreme temperatures.
Maintain regular cleaning intervals
A weekly spot clean, combined with a deeper clean every few weeks, helps prevent debris from accumulating, making each session easier.

Recommended Accessories and Replacement Parts

Water Tech Volt FX‑8Li All Purpose Filter Bag P32X022AP

Captures a mix of debris types, leaves, grit, and moderate sediment
Easy to rinse and reuse, making maintenance quick and simple
High-capacity design reduces how often you need to stop and empty

Water Tech Lithium Wall Charger With Adapter, for Max Li, 11.1 Volt Box, LC099-3S6X099

Genuine OEM replacement ensures safe, reliable charging for the Volt FX-8Li and other Water Tech lithium models.
Includes adapter and wide-voltage support (100–240 V) for easy global use.
UL-certified with built-in protection against overvoltage and short circuits.

Water Tech Nose Cap, P32X002

Precision-fit replacement restores proper suction and sealing on the Volt FX-8Li.
Durable, impact-resistant construction built to withstand regular pool use.
Quick snap-on installation makes replacement fast and hassle-free.

Conclusion

Cleaning your pool with the Volt FX-8Li can be efficient, low-labor, and great for both small messes and deep cleaning. For best results, prep effectively, work slowly and methodically, and store your unit properly. If you’re looking to purchase a Volt FX-8Li for the first time or browse compatible accessories, EZ Pool & Spa Supply has you covered! Shop today for all of your pool cleaning needs!