This simple device could solve your rental problem

A macerator pump solves wastewater evacuation for a toilet far from the drain, but it does not by itself turn a flat into two homes or guarantee €800 in rent plus €756 of IMV (Spain's minimum income benefit). Splitting the property and renting half requires permits, habitability standards and IMV approval.

A macerator toilet pump allows you to install a toilet far from the drain pipe: it shreds solids and pushes them through a narrow tube. It does not, by itself, turn a flat into two homes.

## What the macerator pump does
It needs electricity, maintenance and a drain to pump into. It does not replace ventilation, space or proper installation.

The rest of the plan depends on permits, not on the device.

## Splitting the flat and renting half
In Spain, splitting a **90 m2** flat into two homes requires municipal permits, compliance with habitability standards and, if the horizontal property regime is affected, agreement from the homeowners' association. A 45 m2 half may not meet the minimums of some cities.

Renting it out for **€800** a month is a hypothesis. Adding €756 of IMV and presenting **€1556** for doing nothing ignores that the IMV requires income, assets and cohabitation conditions, and that receiving rent may breach them. Check first with a lawyer or with the Seguridad Social (Spain's social security agency).