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The Lacuna (and possibly other faucets) has a backflow check valve assembly in the hose. There is a lacuna_maintenance pdf from hansgrohe that shows how to clean it. No tools needed, other than maybe a small brush for cleaning. Details not in the maintenance sheet:

• the blue cap thing has an o-ring. It's tiny; be careful to do any work over a plugged sink to not lose it down the drain.
• the two white things are backflow valves. Mine were so sticky that the valve was stuck. Only after cleaning did i realize they were valves.
• if you’re dirty enough that you have low pressure, rinsing with water probably won't fix you, you'd need a stiff bristle brush to actually get any detritus off.

The Lacuna (and possibly other faucets) has a backflow check valve assembly in the hose. There is a lacuna_maintenance pdf from hansgrohe that shows how to clean it. No tools needed, other than maybe a small brush for cleaning. Details not in the maintenance sheet:

• the blue cap thing has an o-ring. It's tiny; be careful to do any work over a plugged sink to not lose it down the drain.
• the two white things are backflow valves. Mine were so sticky that the valve was stuck. Only after cleaning did i realize they were valves.
• if you’re dirty enough that you have low pressure, rinsing with water probably won't fix you, you'd need a stiff bristle brush to actually get any detritus off.

The Lacuna (and possibly other faucets) has a backflow check valve assembly in the hose. There is a lacuna_maintenance pdf from hansgrohe that shows how to clean it. No tools needed, other than maybe a small brush for cleaning. Details not in the maintenance sheet:

• the blue cap thing has an o-ring. It's tiny; be careful to do any work over a plugged sink to not lose it down the drain.
• the two white things are backflow valves. Mine were so sticky that the valve was stuck. Only after cleaning did i realize they were valves.
• if you have low pressure, rinsing with water probably won't fix you, you'd need a stiff bristle brush to actually get any detritus off.

The Lacuna (and possibly other faucets) has a backflow check valve assembly in the hose. There is a lacuna_maintenance pdf from hansgrohe that shows how to clean it. No tools needed, other than maybe a small brush for cleaning. Details not in the maintenance sheet:

• the blue cap thing has an o-ring. It's tiny; be careful to do any work over a plugged sink to not lose it down the drain.
• the two white things are backflow valves. Mine were so sticky that the valve was stuck. Only after cleaning did i realize they were valves.
• if you’re dirty enough that you have low pressure, rinsing with water probably won't fix you, you'd need a stiff bristle brush to actually get any detritus off.

The Lacuna (and possibly other faucets) has a backflow valve assembly in the hose. There is a lacuna_maintenance pdf from hansgrohe that shows how to clean it. Details not in the maintenance sheet:

• the blue cap thing has an o-ring. It's tiny; be careful to do any work over a plugged sink to not lose it down the drain.
• the two white things are backflow valves. Mine were so sticky that the valve was stuck. Only after cleaning did i realize they were valves.
• if you have low pressure, rinsing with water probably won't fix you, you'd need a stiff bristle brush.

The Lacuna (and possibly other faucets) has a backflow check valve assembly in the hose. There is a lacuna_maintenance pdf from hansgrohe that shows how to clean it. No tools needed, other than maybe a small brush for cleaning. Details not in the maintenance sheet:

• the blue cap thing has an o-ring. It's tiny; be careful to do any work over a plugged sink to not lose it down the drain.
• the two white things are backflow valves. Mine were so sticky that the valve was stuck. Only after cleaning did i realize they were valves.
• if you have low pressure, rinsing with water probably won't fix you, you'd need a stiff bristle brush to actually get any detritus off.