Install a Space-Saving Siphon: Reclaim Under-Sink Storage 2026

Once upon a time, the under-sink cabinet was a cluttered mess of pipes that left no room for detergent, trash bins, or bottles. Now you can have more space under your sink by adopting a radical and quick solution: a space-saving siphon like the Spazio2 Lira. Its structure is simple: a collector element (crosspiece) receives the drainage from the sink basins and sends it to the siphon fixed to the wall. The uniqueness of this assembly lies in the fact that the pipes, crosspiece, and siphon hug the back wall, giving you much more usable space underneath. Spazio2 allows you to mount the drains of a double-basin sink, but it can also be equipped with a special connection for a dishwasher or washing machine.

Wall Drain and Crosspiece Installation

Start by removing the old collector with siphon, leaving the drain connections from the sink basins. The elbow, which must be inserted into the wall drain, should be fitted with a square finishing rose that adheres to the tile. Onto the elbow, install the siphon, positioning it parallel to the wall. Next, install and screw the crosspiece onto the siphon, also positioning it parallel to the wall.

Using a fine-tooth hacksaw, cut the connecting pipes to size. Make the connections by inserting the pipes with gaskets and tightening the rings by hand. Connect the vertical pipes from the basin drains to the upper part of the crosspiece. Any unused connections can be closed using the locking rings with orange caps. On the head of the crosspiece, you can attach the drain connection pipe for the washing machine or dishwasher.

Looking to upgrade your entire plumbing system? Explore our full range of home improvement essentials for every project.

Tools Needed

• Fine-tooth hacksaw

Why Choose a Space-Saving Siphon?

Traditional P-traps take up a massive amount of cabinet real estate. By switching to a wall-mounted system, you free up the entire floor of your cabinet. This means you can easily store cleaning supplies, trash cans, or even a small kitchen cart for extra prep space. It’s a game-changer for small kitchens or bathrooms where every inch counts.

Benefits at a Glance

• Maximized Storage: Reclaim up to 30% more space under your sink.
• Cleaner Look: Pipes are tucked against the wall, out of sight.
• Easy Maintenance: The siphon is accessible and simple to clean.
• Versatile Connections: Easily add dishwasher or washing machine drains.

Frequently Asked Questions

1. Can I install this myself?

Yes, with basic DIY skills and a fine-tooth hacksaw, this is a manageable weekend project. For a seamless finish, make sure your under-sink lighting is installed to help you see what you're doing.

2. Will this work with a garbage disposal?

Yes, the Spazio2 system can be adapted for use with a garbage disposal. You may need an additional adapter kit, which is available at most hardware stores.

3. What if my wall drain is not perfectly aligned?

The system is designed with some flexibility. You can use offset adapters or flexible pipe sections to correct minor misalignments. For larger adjustments, consider consulting a professional plumber.

4. Does this siphon prevent odors?

Absolutely. The Spazio2 uses a water seal just like a traditional P-trap, effectively blocking sewer gases from entering your home.

5. Can I use this in a bathroom vanity?

Definitely! It’s perfect for bathroom vanities where you need extra room for toiletries, towels, or a small step stool for kids.

Complete Your DIY Project

Once you’ve freed up space under your sink, why not tackle the rest of your home? A well-organized space starts with the right furniture. Check out our selection of storage benches for entryways or bookcases and shelving units for living areas. For the kitchen, consider a dining table that fits your newly decluttered lifestyle.

Outdoor and Garden Projects

If you’re feeling inspired, extend your DIY skills outdoors. A space-saving siphon is just the beginning. Organize your garden supplies in a new shed or create a relaxing retreat with a pergola. For evening entertaining, don’t forget outdoor lighting and a quality BBQ grill.

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